Monday, March 28, 2011

About Thyroid Cancer - The Effect of Dental X-Rays and Mammograms

The following note is from a very concerned visitor:

Recently Dr. Oz had a show on the fastest growing cancer in women, thyroid cancer. It was a very interesting program and he mentioned that the increase could possibly be related to the use of dental x-rays and mammograms. 


He demonstrated that on the apron the dentist puts on
you for your dental x-rays there is a little flap that can be lifted up and wrapped around your neck.
Many dentists don't bother to use it.


Also, there is something called a "thyroid guard" 
for use during mammogram


By coincidence, I had my yearly mammogram yesterday. I felt a little silly, but I asked about the guard and sure enough, the technician had one in a drawer. I asked why it wasn't routinely used. Answer: "I don't know. You have to ask for it." Well, if I hadn't seen the show, how would I have known to ask?

I hope other visitors would pass this on to your friends and family.

Radiation detected in Massachusetts rainwater as Fukushima crisis worsens

The Fukushima crisis continues to worsen by the day, with nuclear experts around the world finally realizing and admitting we've all been lied to. "I think maybe the situation is much more serious than we were led to believe," said Najmedin Meshkati of the University of Southern California, in a Reuters report (http://www.reuters.com/article/2011...). That same article revealed that recent radiation readings at Fukushima show "contamination 100,000 times normal in water at reactor No. 2 and 1,850 times normal in the nearby sea."

Massachusetts rainwater has also been found to be contaminated with low levels of radiation from Fukushima, indicating just how widespread the radioactive fallout has become. It's not just the West Coast of North America that's vulnerable, in other words: even the East Coast could receive dangerous levels of fallout if Fukushima suffers a larger release of radioactive material into the air.

Rolling blackouts are now continuing throughout Japan due to the drop in power production from Fukushima diminishing Japan's electricity generating capacity (http://english.kyodonews.jp/news/20...). The only reason Japan isn't experiencing widespread power blackouts right now is because so many factories were damaged or swept away from the tsunami itself. Once a serious rebuilding effort gets underway, Japan is going to find itself critically short of electrical power.

The radiation leaking from Reactor No. 2 is now measured at 1,000 millisieverts an hour -- more than enough to cause someone's hair to fall out from a single exposure event. Radiation sickness can begin at just 100 millisieverts. The extremely high levels of radiation are, in fact, making it nearly impossible for workers to continue working at the reactor. "You'd have a lot of difficulty putting anyone in there," said Richard Wakeford, a radiation epidemiology expert at the Dalton Nuclear Institute in Manchester. "They're finding quite high levels of radiation fields, which is impeding their progress dealing with the situation." (http://www.businessweek.com/news/20...)

Thursday, March 24, 2011

Why Physical Activity And Exercise Are Important

The Relationship Between Physical Activity And Exercise

The terms physical activity and exercise may seem synonymous, but there are critical differences between the two.

* Physical activity encompasses any movement of the body in which your muscles contract and your metabolism increases. Everything from washing dishes to playing ice hockey falls under this umbrella.

* Exercise is a subcategory of physical activity. It refers specifically to a structured program of activity geared toward achieving or maintaining physical fitness.

Levels of physical activity can be viewed on a continuum. At one end of the spectrum is a sedentary lifestyle, an absence of any significant physical activity. On the other end is the peak level of exercise training exhibited by a well-conditioned athlete. How you move along this continuum depends on both your starting point and your exercise goals. If you are currently sedentary, simply upping the amount of physical activity in your daily life is an important push forward.

At a certain point, however, you will need to establish an exercise program to continue making strides. And once you have a program in place, you should periodically review your fitness level and reexamine your personal goals to determine how you can continue to make progress.

How Your Body Responds To Physical Activity And Exercise

When you call on your body to perform any type of physical work — even something as simple as walking across the room — your cells are jolted out of their resting state of balance. What follows is a complicated set of physical processes that supply the cells with the extra energy they need.

First and foremost, the cells require additional oxygen to fuel the metabolic functions necessary for sustained activity. To meet this demand, the respiratory and circulatory systems gear up to deliver oxygen-rich blood to the working muscles. This accelerated metabolism, in turn, produces greater amounts of waste products. These products are transported back to waste-removal sites, such as the lungs and kidneys, for expulsion from the body.

It is because of these processes that you breathe more rapidly and your heart pumps more vigorously when you exert yourself. Another byproduct of increased energy production is heat. Sweating — a telltale sign of strenuous exertion — is your body's way of cooling your skin and keeping your body temperature at a safe level.

The Benefits Of Physical Activity And Exercise

Physical activity (and exercise) is a cornerstone of a healthy lifestyle. Not only does physical activity make you look and feel better, but it is also critical for improving your health and extending your life. Being active significantly lowers your chances of developing potentially fatal illnesses, including heart disease, diabetes and cancer. In addition, remaining active throughout your life can help you stay healthy and disability-free as you age.

Here's a rundown on the benefits you can expect from regular activity:

* Lower risk of early death
* Lower risk of heart disease
* Lower risk of high blood pressure (If your blood pressure is already elevated, you can expect it to drop.)
* Better weight control
* Lower risk of diabetes
* Lower risk of colon cancer
* Increased bone strength
* Improved balance
* Lower risk of depression and anxiety
* Increased energy level
* Overall sense of well-being

Friday, March 18, 2011

How Can Potassium Iodide Help Us To Counter the Effect of Radioactive Particles?

What does potassium iodide (KI) do?
The effectiveness of KI as a specific blocker of thyroid radioiodine uptake is well established. When administered in the recommended dose, KI is effective in reducing the risk of thyroid cancer in individuals or populations at risk for inhalation or ingestion of radio iodines.  KI floods the thyroid with non-radioactive iodine and prevents the uptake of the radioactive molecules, which are subsequently excreted in the urine.

Can potassium iodide (KI) be used to protect against radiation from bombs other than Radioactive  iodine?
Potassium iodide (KI) works only to prevent the thyroid from uptaking radioactive iodine. It is not a general radioprotective agent.

Who really needs to take potassium iodide (KI) after a nuclear radiation release?
The need for potassium iodide is based on age, which primarily determines risk for radio iodine induced thyroid cancer. Those at highest risk are infants and children, as well as pregnant and nursing females, and the recommendation is to treat them at the lowest threshold (with respect to predicted radioactive dose to the thyroid).Anyone over age 18 and up to age 40 should be treated at a slightly higher threshold. Finally, anyone over 40 should be treated with KI only if the predicted exposure is high enough to destroy the thyroid and induce lifelong hypothyroidism(thyroid deficiency).

What potassium iodide (KI) products are currently available?
In the U.S., Iosat, ThyroSafe, and ThyroShield are FDA-approved KI products. Please be aware that only the KI products approved by FDA may be legally marketed in the United States. [In Canada, the only product currently licensed by Health Canada is RadBlock (KI 65 mg tablets).

What dosages of potassium iodide (KI) should be taken for specific exposure levels?
  • Exposures greater than 5 cGy:
    • Birth through 1 mo. - 16 mg
    • 1 mo. through 3 yrs. - 32 mg
    • 3 yrs. through 18 yrs. - 65 mg (adolescents more than 150 pounds should take adult dose.)
  • Exposures greater than 10 cGy:
    • 18 yrs. through 40 yrs. - 130 mg
  • Exposures greater than 500 cGy:
    • Adults over 40 yrs. - 130 mg
How long should potassium iodide (KI) be taken?
Since KI protects for approximately 24 hours, it should be dosed daily until the risk no longer exists. Priority with regard to evacuation and sheltering should be given to pregnant females and neonates because of the potential for KI to suppress thyroid function in the fetus and neonate. Unless other protective measures are not available, we do not recommend repeat dosing in pregnant females and neonates.

Who should not take potassium iodide (KI) or have restricted use?
Persons with known iodine sensitivity should avoid KI, as should individuals with dermatitis herpetiformis and hypocomplementemic vasculitis, extremely rare conditions associated with an increased risk of iodine hypersensitivity. Individuals with multinodular goiter, Graves' disease, and autoimmune thyroiditis should betreated with caution -- especially if dosing extends beyond a few days.

What are the possible risks and side effects of taking potassium iodide (KI)? 
Thyroidal side effects of KI at recommended doses rarely occur in iodine-sufficient populations such as the U.S. As a rule, the risk of thyroidal side effects is related to dose and to the presence of underlying thyroid disease (e.g., goiter, thyroiditis, Graves'). FDA recommends adherence to the Guidance on Potassium Iodide asa Thyroid Blocking Agent in Radiation Emergencies http://www.fda.gov/downloads/Drugs/GuidanceComplianceRegulatoryInformation/Guidances/UCM080542.pdf) for intervention threshold and dose, though we recognize that the exigencies of any particular emergency situation may mandate deviations from those recommendations. With that in mind, it should be understood that as a general rule, the risks of KI are far outweighed by the benefits with regard to prevention of thyroid cancer in susceptible individuals.

Should I be recommending potassium iodide(KI) for my patients who request it? 
As with any drug, you should understand the risks and benefits of KI before recommending it or prescribing it to patients. We recommend that physicians read our guidance for more information (see above). The FDA guidance discusses the rationale and methods of safe and effective use of KI in radiation emergencies (http://www.fda.gov/downloads/Drugs/GuidanceComplianceRegulatoryInformation/Guidances/UCM080542.pdf). It specifically addresses threshold predicted thyroid radioiodine exposure for intervention and dosing by age group. The recommendations for intervention are based oncategories of risk for thyroid cancer, with the young prioritized because of increased sensitivity to the carcinogenic effects of radioiodine.

The above excerpts are reprinted from the FDA Q&A concerning the use of potassium iodide.

Action Items for Radiation Plume Reaching California, Oregon, Washington

The New York Times report that a radiation plume will reach California by Friday has a lot of people asking us for more information about what to do. (See http://www.nytimes.com/2011/03/17/science/17plume.html?_r=1)

Fortunately, the amount of radiation that would actually fall on California (or Oregon, Washington, British Columbia, Alaska, etc.) is currently very small. Too small to pose a serious health risk for right now.

The time to get really concerned is if -- and only if -- the Fukushima reactors suffer a fuel rod "meltdown" event which would release a massive amount of radiation into the atmosphere. The United Nations has calculated that such an event would send a cloud of very powerful radiation headed eastward, arriving on the shores of the United States and Canada within 2-3 days after the meltdown, depending on wind patterns.

Importantly, this will give you some time to take action should such an event occur. The next 24 - 48 hours are crucial in Japan's effort to stop the nuclear fuel rod meltdown. It is entirely unknown whether Japan can succeed in stopping it. The situation remains dire.
If you live in the western states or provinces of North America, it is extremely important to be prepared by taking the following actions RIGHT NOW:

1) Fuel up your vehicle(s) and be ready to hit the road for a possible evacuation (or hunker down if you're out in the country and feel like you would be safer there).

2) If you plan to stay put, go to the hardware store TODAY and buy large amounts of plastic and duct tape to seal up your windows and doors. This will help protect you from radioactive fallout. You will also need to store water, food, and all the usual emergency supplies because outside help probably won't be available.

3) If you plan to evacuate, have a "Go Bag" ready to go at a moment's notice. This go bag should include a water filter, emergency radio, flashlight, duct tape, emergency knife, spare cash, whatever medical supplies you might need, extra food and water, spare fuel cans and so on. Have it ready now in case you need it.

4) Significantly increase your intake of iodine-containing foods and superfoods starting right now: Seaweeds are a great source. We've listed our entire inventory of what we have available at our store (http://www.naturalnews.com/031730_iodine_radiation_poisoning.html), but I would actually prefer you to go out and get this locally TODAY at your local health food stores, where possible. You may not have time to wait on a UPS delivery. Fortunately, our store ships from Ojai, California, meaning that if you order foods from us today that are in stock, and you're in California, you could receive them very, very quickly (within 1-2 business days).

5) If you have potassium iodide pills (radiation pills), don't take them yet. Keep them ready to take if and only if a meltdown event occurs and a massive dose of radiation has been released into the atmosphere.

6) Have a plan for you and your family. Where will you meet if you need to evacuate? Don't count on cell phones working. Have a plan of where to go, how to get there and how to survive once you get there.

Hopefully none of this will be necessary. If they can stop the meltdown at Fukushima, there is virtually no real radiation risk in North America. That's the outcome we're all hoping and praying for.

But if a meltdown takes place, it is almost certain that strong winds will push a massive radiation cloud right into North America within a matter of days, potentially dropping a highly dangerous amount of radioactive material on California or other regions. That's the scenario that we all need to be prepared to guard against.

Do not rely on your government to tell you the truth about what's happening. Governments are in the business of "preventing panic" by withholding information you need to know. Governments believe that if too many people know the truth, it might start a panic, and even more people could die in the panic than from the event itself. They may actually be correct at some level on that, but I believe that people have a right to know what's really going on. And the sober, shocking truth of the matter is that as of right now, our world is facing an unprecedented nuclear meltdown event that could dwarf the Chernobyl catastrophe of 1987. We're talking about as many as 600,000 spent fuel rods which are now threatened by fires and loss of cooling fluids. This is not a set of circumstances to be taken lightly.

I urge all Natural News readers to take this seriously. Get prepared now. Get your go bag ready just in case. Start boosting your natural iodine intake TODAY. Be ready to head out of Dodge if you're in a geographic area that could be impacted. And then watch the news on this to stay informed.

Another thing: If a meltdown does occur and an evacuation is announced for parts of the west coast of North America, you will need to be one of the first to head out if you expect to get out at all. The highways around Los Angeles in particular do not have the capacity to handle a mass evacuation. They barely have the capacity to handle rush hour! Imagine what happens if half the people in L.A. try to leave all at the same time... that will be a week-long traffic jam, and people will run out of gas on the highways, abandon their vehicles, and make the highways impassable.

(Article by Mike Adams, Natural News)

Thursday, March 17, 2011

The United Nations has now confirmed that a radioactive plume will reach California by Friday

The United Nations has now confirmed that a radioactive plume will reach California by Friday (http://www.nytimes.com/2011/03/17/science/17plume.html?_r=1).

Fortunately, this is calculated to be a very small level of radiation that officially poses no real health risk -- but that won't be true if Fukushima goes into a fuel rod meltdown (which could happen in the next 2 days).

Because of all this, there has been a run on nearly all iodine sources across North America, Australia and Asia. Price-gouging is now rampant. Some people are getting really scared.

However we can still get iodine from lots of natural sources such as seaweeds. And for minor exposures to radiation, there are cleansing superfoods such as chlorella and spirulina that have been used as far back as World War II to help clear radiation exposure and quickly flush radioactive substances from the body. (Source: Natural News)

Wednesday, March 16, 2011

Iodine Protects Thyroid and Glandular System from Radiation Damage

In the aftermath of Japan's nuclear catastrophe and the fear that winds could blow radiation into the west coast of North America, there has been a sudden rush on potassium iodide, which helps protect your glandular system from radiation poisoning if you're exposed. The Japanese government is handing out this supplement in huge quantities to the survivors north of Tokyo, and here at NaturalNews, we've received a flurry of requests from people wanting to know where they can find available supplies of potassium iodide.

These "radiation pills" are being sold out everywhere. NukePills.com says they were completely sold out over the weekend. Pharmacies in California are receiving a stampede of phone calls from near-panicked residents there, reports Fox News.

Why you need to boost your iodine levels to protect against radiation

The important thing is to get iodine into your body in a safe supplement form. This does not have to be "potassium iodide." It can also be in the form of Nascent Iodine, which is a high-quality iodine supplement that has been available in the natural product marketplace for several years. (Do NOT drink topical antiseptic iodine products such as Betadine -- these products are not suitable for human consumption. They are povidone-iodine mixtures.)

Dr. Brownstein is one of the top experts on iodine. About radiation exposure, he explains: "If there is enough inorganic, non-radioactive iodine in our bodies, the radioactive fallout has nowhere to bind in our bodies. It will pass through us, leaving our bodies unharmed. It is important to ensure that we have adequate iodine levels BEFORE this fallout hits." (Source link below, from the IMVA website.)

What Dr. Brownstein is explaining is that you must get iodine in your body BEFORE being exposed to radiation. And most people are extremely deficient in iodine on a daily basis (http://www.naturalnews.com/023107_i...).

Dr. Mark Sircus is also an excellent source of information about iodine, magnesium and other minerals. Over at the IMVA website, he has a book on iodine that is highly recommend: http://iodine.imva.info/




Monday, March 7, 2011

Japan halts vaccines from Pfizer, Sanofi after deaths of four children

The deaths just keep mounting all across the world: Children are collapsing into comas and then dying, just minutes after receiving combination vaccines that have been deceptively marketed as "completely safe." Last year, Australia temporarily banned flu vaccines in children after they were found to have caused vomiting, fevers and seizures (http://www.naturalnews.com/029586_A...).

Today the damage from vaccines is emerging in Japan, where the health ministry has suspended the use of vaccines from Pfizer and Sanofi-Aventis following the deaths of four children there who died within minutes after receiving these vaccine shots.

All four children received combination vaccines, where multiple shots are combined into one high-potency injection. MMR is another example of a combination vaccine shot that combines vaccines for measles, mumps and rubella. There is very strong evidence that vaccines are far more dangerous when given in combination than when given one at a time (http://naturalnews.tv/v.asp?v=60825...). (http://www.naturalnews.com/030678_M...)

Vitamin D Mega-Doses of Vitamin D Help Prevent Breast Cancer and Other Diseases

Current government recommendations of 400 or 600 international units (IU) of vitamin D a day are insufficient to prevent serious diseases like breast cancer, a new study published in the journal Anticancer Research has found. Researchers from the University of California, San Diego (UCSD) School of Medicine and Creighton University (CU) School of Medicine discovered that when much higher doses of vitamin D are taken daily, the risks associated with developing several major diseases are reduced by about half.

"We found that daily intakes of vitamin D by adults in the range of 4000-8000 IU are needed to maintain blood levels of vitamin D metabolites in the range needed to reduce by about half the risk of several diseases -- breast cancer, colon cancer, multiple sclerosis, and type 1 diabetes," said Cedric Garland, DrPH, professor of family and preventive medicine at the UCSD Moores Cancer Center.

"I was surprised to find that the intakes required to maintain vitamin D status for disease prevention were so high -- much higher than the minimal intake of vitamin D of 400 IU/day that was needed to defeat rickets in the 20th century."

A review of several thousand volunteers taking between 1,000 and 10,000 IU/day of vitamin D revealed that much higher daily intakes of vitamin D are required to achieve blood serum levels of vitamin D in the healthy range of 40 to 60 nanograms per milliliter (ng/mL), or higher. And those who daily take such mega-doses of vitamin D in order to maintain these levels are much less likely to develop serious disease.

"Now that the results of this study are in, it will become common for almost every adult to take 4,000 IU/day," said Garland. "This is comfortably under the 10,000 IU/day that the Institute of Medicine (IOM) Committee Report considers as the lower limit of risk, and the benefits are substantial. Now is the time for virtually everyone to take more vitamin D to help prevent some major types of cancer, several other serious illnesses, and fractures."

Serena Williams and Pulmonary Embolism—Who's at Risk?

Serena Williams is recuperating at home under medical supervision from a health scare she described as “extremely hard, scary and disappointing” in a statement issued March 2. The tennis ace and 13-time Grand Slam champion underwent emergency treatment for a hematoma brought on by a pulmonary embolism (a blood clot in the lungs). Here’s a guide to this dangerous and surprisingly common condition.

What causes pulmonary embolism and how serious is it? Pulmonary embolism occurs when a blood clot lodges in the lungs, a potentially life-threatening situation. Typically the clot forms in blood vessels in the leg, pelvis, arms or heart. If the clot comes from the arms or legs, it’s described as deep venous thrombosis. The clot then floats through the bloodstream to the lungs, passing through vessels until it gets stuck in one of them, obstructing blood flow like a clogged pipe. According to the Centers for Disease Control, up to 200,000 Americans suffer pulmonary embolism (PE) each year, and nearly one-third of them die.
Learn more about pulmonary embolism.

Who is at risk? PE can strike at any age, but certain factors magnify the threat, including travel. Sitting for prolonged periods in a car or airplane slows blood flow in the legs, upping risk for clot formation. This may have been a culprit in Williams’ case since she reportedly developed the pulmonary embolism soon after a flight from New York to Los Angeles. Other risk factors include immobilization after a broken bone, stroke or other illnesses that leaves the person confined to bed, obesity, heart disease, cancer, smoking and injury or trauma to the legs. Recent surgery is another risk factor, which played a role in my own pulmonary embolism, and may been an issue for Williams, who had recently undergone treatment for a foot injury.  PE is more likely during pregnancy or in women who take birth control pills or use estrogen therapy for menopausal symptoms, particularly if they smoke or are overweight. 

What symptoms does pulmonary embolism cause? Warning signs vary but among the more common are chest pain (particularly if it starts suddenly and intensifies during a deep breath), coughing up blood, unexplained shortness of breath, dizziness or fainting, and anxiety or a sense of dread. These symptoms warrant an immediate call to 911 or trip to the hospital since PE is a potentially life-threatening emergency.
Check out this 3D video on how blood clots occur.

What’s the treatment? People with PE typically receive oxygen, often through tubing inserted into the nostrils or a mask. In severe cases, a ventilator may be required. Blood-thinning medications, such as heparin, are often  administered by IV. For patients who are critically ill or have large clots, doctors may turn to clot-buster drugs (thrombolytics) or perform surgical procedures, such as removing the clot via a thin tube snaked through the blood vessels to the lungs. If someone suffers PE more than once, as occurred in my case, doctors may advise blood tests to check for clotting disorders.

What can I do to prevent PE? On long flights, get up and walk around the cabin every hour. Also avoid crossing your legs for extended periods. During car trips, stop and stretch your legs at least every two hours with a short walk to help prevent clot formation. Before surgery, discuss blood clot prevention steps with your doctor. Depending on your risk, you may be treated with blood thinners before or after the operation. You may also be asked to wear compression stockings or be treated in the hospital with air-inflated cuffs that automatically massage your legs every few minutes, helping push blood through the vessels. For most people, one of the best ways to prevent clots after an operation is to resume physical activity, such as walking, as soon as possible after surgery.

Friday, March 4, 2011

Useful Health Tips from China

1. 自己CPR的方法     HOW TO SURVIVE A HEART ATTACK ALONE
2. 心 臟病發、中風前兆    Heart attack and  stroke warning signs
3. 
中風辨認常識  Stroke identification
4. 
聖心減肥良方  S.H.M. Diet program
5. 
十大營養食品     (Top 10 Nutritious Food) 
6. 
治口臭食療方     (Bad Breath Remedy) 
7. 
豬腳薑醋製法     (Pig's Feet With Ginger & Vinegar) 
8. 
清心養血之良食     (Healthy Food for Heart & Blood) 
9. 
珩記祖傳祕方鹹檸檬     (Salted Lemon Tea) 
10. 
鼻敏感效湯     (Hay fever remedial soup) 
11. 
果菜療能一覽表     (What's Good For You) 
12. 
療能食物對照表     (Cross-reference List) 
13. 
肉桂之天然食療     (Cinnamon's Health Benefits) 
14. 
小紅苺防尿道膀胱炎     (Cranberry's Health Benefits)
59. 馬鈴薯鮮汁療法     (The Amazing Potato Juice)
60. 
打嗝放屁去濁氣     (Hiccup/Farting Is Healthy)
61. 
每天大笑不會老     (Laugh to slow down aging)
62. 
生活常識小秘密     (Trivial for your daily life)
63. 
靈芝治「未病」     (Lingzhi's [Ganoderma] effects)
64. 
素食不正確更糟  (Vegetarian's Mistakes)
65. 
增強記憶力食物  (The Memory Boosters)
66. 
栗子是[腎之果]  (Chestnuts good for elders)
67. 
糖尿病飲食和食療  (Diabetes helpful diets)
68. 
熱門健康食物排行  (Healthy Food Ranking)

Thursday, March 3, 2011

Why You Need 8 Gglasses of Water A Day

                                                    1) 75% of Americans are chronically dehydrated.
                                                          (Likely applies to half the world population)


2) In 37% of Americans, the thirst mechanism is so weak
that it is mistaken for hunger.

3) Even MILD dehydration will slow down one's metabolism as 3%.
   
4) One glass of water will shut down midnight hunger pangs
for almost 100% of the dieters studied in a University of
Washington study.  

5) Lack of water, the #1 trigger of daytime fatigue.


6) Preliminary research indicates that 8-10 glasses of
water a day could significantly ease back and joint pain
for up to 80% of sufferers.
7) A mere 2% drop in body water can trigger fuzzy short-term
memory, trouble with basic math, and difficulty focusing on
the computer screen or on a printed page.  

8) Drinking 8 glasses of water daily decreases the risk of
colon cancer by 45%, plus it can slash the risk of breast
cancer by 79%., and one is 50% less likely to develop
bladder cancer. 
Are you drinking the amount of water you should drink every day?