13 Proven Health Benefits of Coffee

by admin - May 25, 2016

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It is loaded with antioxidants and beneficial nutrients that can improve your health.

The studies show that coffee drinkers have a much lower risk of several serious diseases.

Here are the top 13 evidence-based health benefits of coffee, that have been confirmed in actual human studies.

1. Coffee Can Improve Energy Levels and Make You Smarter

Coffee can help people feel less tired and increase energy levels (1, 2).

This is because it contains a stimulant called caffeine, which is actually the most commonly consumed psychoactive substance in the world (3).

After you drink coffee, the caffeine is absorbed into the bloodstream. From there, it travels into the brain (4).

In the brain, caffeine blocks an inhibitory neurotransmitter called Adenosine.

When that happens, the amount of other neurotransmitters like norepinephrine and dopamine actually increases, leading to enhanced firing of neurons (5, 6).

Many controlled trials in humans show that coffee improves various aspects of brain function. This includes memory, mood, vigilance, energy levels, reaction times and general cognitive function (7, 8, 9).
Bottom Line: Caffeine blocks an inhibitory neurotransmitter in the brain, which leads to a stimulant effect. This improves energy levels, mood and various aspects of brain function.

2. Coffee Can Help You Burn Fat

Did you know that caffeine is found in almost every commercial fat burning supplement?

There’s a good reason for that… caffeine is one of the very few natural substances that have actually been proven to aid fat burning.

Several studies show that caffeine can boost the metabolic rate by 3-11% (10, 11).

Other studies show that caffeine can specifically increase the burning of fat, by as much as 10% in obese individuals and 29% in lean people (12).

However, it is possible that these effects will diminish in long-term coffee drinkers.

Bottom Line: Several studies show that caffeine can increase fat burning in the body and boost the metabolic rate.

3. The Caffeine Can Drastically Improve Physical Performance

Caffeine stimulates the nervous system, causing it to send signals to the fat cells to break down body fat (13, 14).

But caffeine also increases Epinephrine (Adrenaline) levels in the blood (15, 16).

This is the “fight or flight” hormone, designed to make our bodies ready for intense physical exertion.

Caffeine makes the fat cells break down body fat, releasing them into the blood as free fatty acids and making them available as fuel (17, 18).

Given these effects, it is not surprising to see that caffeine can improve physical performance by 11-12%, on average (29, 20).

Because of this, it makes sense to have a strong cup of coffee about a half an hour before you head to the gym.

Bottom Line: Caffeine can increase adrenaline levels and release fatty acids from the fat tissues. It also leads to significant improvements in physical performance.

4. There Are Essential Nutrients in Coffee

Coffee is more than just black water. Many of the nutrients in the coffee beans do make it into the final drink.

A single cup of coffee contains (21):

Riboflavin (Vitamin B2): 11% of the RDA.
Pantothenic Acid (Vitamin B5): 6% of the RDA.
Manganese and Potassium: 3% of the RDA.
Magnesium and Niacin (B3): 2% of the RDA.
Although this may not seem like a big deal, most people are drinking more than one cup per day. If you drink 3-4, then these amounts quickly add up.

Bottom Line: Coffee contains several important nutrients, including Riboflavin, Pantothenic Acid, Manganese, Potassium, Magnesium and Niacin.

5. Coffee May Lower Your Risk of Type II Diabetes

Type 2 diabetes is a gigantic health problem, currently afflicting about 300 million people worldwide.

It is characterized by elevated blood sugars in the context of insulin resistance or an inability to secrete insulin.

For some reason, coffee drinkers have a significantly reduced risk of developing type 2 diabetes.

The studies show that people who drink the most coffee have a 23-50% lower risk of getting this disease, one study showing a reduction as high as 67% (22, 23, 24, 25, 26).

According to a massive review that looked at data from 18 studies with a total of 457,922 individuals, each daily cup of coffee was associated with a 7% reduced risk of developing type 2 diabetes (27).

Bottom Line: Several observational studies show that coffee drinkers have a much lower risk of getting type II diabetes, a serious disease that currently afflicts about 300 million people worldwide.

6. Coffee May Protect You From Alzheimer’s Disease and Dementia

Smiling Elderly Woman

Alzheimer’s disease is the most common neurodegenerative disease and the leading cause of dementia worldwide.

This disease usually affects people over 65 years of age.

Unfortunately, there is no known cure for Alzheimer’s.

However, there are several things you can do to prevent the disease from showing up in the first place.

This includes the usual suspects like eating healthy and exercising, but drinking coffee may be incredibly effective as well.

Several studies show that coffee drinkers have up to a 65% lower risk of getting Alzheimer’s disease (28, 29, 30).

Bottom Line: Coffee drinkers have a much lower risk of getting Alzheimer’s disease, which is a leading cause of dementia worldwide.

7. Caffeine May Lower The Risk of Parkinson’s

Parkinson’s disease is the second most common neurodegenerative disease, right after Alzheimer’s.

It is caused by death of dopamine-generating neurons in the brain.

Same as with Alzheimer’s, there is no known cure, which makes it that much more important to focus on prevention.

Coffee Beans Spread Horizontally, Smaller

In studies, coffee drinkers have a much lower risk of developing Parkinson’s disease, with a reduction in risk ranging from 32-60% (31, 32, 33, 34).

In this case, it appears to be the caffeine itself that is causing the effect. People who drink decaf don’t have a lower risk of Parkinson’s (35).

Bottom Line: Coffee drinkers have up to a 60% lower risk of getting Parkinson’s disease, the second most common neurodegenerative disorder.

8. Coffee Appears to Have Protective Effects on The Liver

The liver is an amazing organ that carries out hundreds of important functions in the body.

Several common diseases primarily affect the liver, including hepatitis, fatty liver disease and others.

Many of these diseases can lead to a condition called cirrhosis, in which the liver has been largely replaced by scar tissue.

It turns out that coffee may protect against cirrhosis. People who drink 4 or more cups per day have up to an 80% lower risk (36, 37, 38).

Bottom Line: Coffee drinkers have a much lower risk of developing cirrhosis, which can be caused by several diseases that affect the liver.

9. Coffee Can Fight Depression and Make You Happier

Depression is a serious mental disorder that causes a significantly reduced quality of life.

It is incredibly common and about 4.1% of people in the U.S. currently meet the criteria for clinical depression.

In a Harvard study published in 2011, women who drank 4 or more cups per day had a 20% lower risk of becoming depressed (39).

Another study with 208,424 individuals found that those who drank 4 or more cups per day were 53% less likely to commit suicide (40).

Bottom Line: Coffee appears to lower the risk of developing depression and may dramatically reduce the risk of suicide.

10. Coffee Drinkers Have a Lower Risk of Some Types of Cancer

Cancer is one of the world’s leading causes of death and is characterized by uncontrolled growth of cells in the body.

Coffee appears to be protective against two types of cancer… liver cancer and colorectal cancer.

Liver cancer is the third leading cause of cancer death in the world, while colorectal cancer ranks fourth (41).

Studies show that coffee drinkers have up to a 40% lower risk of liver cancer (42, 43).

One study of 489,706 individuals found that those who drank 4-5 cups of coffee per day had a 15% lower risk of colorectal cancer (44).

Bottom Line: Liver and colorectal cancer are the 3rd and 4th leading causes of cancer death worldwide. Coffee drinkers have a lower risk of both.

11. Coffee Does Not Cause Heart Disease and May Lower The Risk of Stroke

It is often claimed that caffeine can increase blood pressure.

This is true, but the effect is small (3-4 mm/Hg) and usually goes away if you drink coffee regularly (45, 46).

However, the effect may persist in some people, so keep that in mind if you have elevated blood pressure (47, 48).

That being said, the studies do NOT support the myth that coffee raises the risk of heart disease (49, 50).

In fact, there is some evidence that women who drink coffee have a reduced risk of heart disease (51).

Some studies also show that coffee drinkers have a 20% lower risk of stroke (52, 53).

Bottom Line: Coffee may cause mild increases in blood pressure, which usually diminish over time. Coffee drinkers do not have an increased risk of heart disease, but a slightly lower risk of stroke.

12. Coffee May Help You Live Longer

Given that coffee drinkers are less likely to get many diseases, it makes sense that coffee could help you live longer.

There are actually several observational studies showing that coffee drinkers have a lower risk of death.

In two very large studies, drinking coffee was associated with a 20% lower risk of death in men and a 26% lower risk of death in women, over a period of 18-24 years (54).

This effect appears to be particularly strong in type II diabetics. In one study, diabetics who drank coffee had a 30% lower risk of death during a 20 year study period (55).
Bottom Line: Several studies show that coffee drinkers live longer and have a lower risk of premature death.

13. Coffee is The Biggest Source of Antioxidants in The Western Diet

For people who eat a standard Western diet, coffee may actually be the healthiest aspect of the diet.

That’s because coffee contains a massive amount of antioxidants.

In fact, studies show that most people get more antioxidants from coffee than both fruits and vegetables… combined (56, 57, 58).

Coffee is one of the healthiest beverages on the planet. Period.

20 cancer prevention tips.

by admin - May 24, 2016

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1.Filter your Tap water.

You’ll reduce your exposure to known or suspected carcinogens and hormone-disrupting chemicals. A report from the President’s Cancer Panel on how to reduce exposure to carcinogens suggests that home-filtered tap water is a safer bet than bottled water, whose quality often is not higher—and in some cases is worse—than that of municipal sources, according to a study by the Environmental Working Group. (Consumer Reports’ top picks for faucet-mounted filters: Culligan, Pur Vertical, and the Brita OPFF-100.) Store water in stainless steel or glass to avoid chemical contaminants such as BPA that can leach from plastic bottles.

2.Stop tapping your tank

So say the EPA and the President’s Cancer Panel: Pumping one last squirt of gas into your car after the nozzle clicks off can spill fuel and foil the pump’s vapor recovery system, designed to keep toxic chemicals such as cancer-causing benzene out of the air, where they can come in contact with your skin or get into your lungs.

3. Marinate meat first

Processed, charred, and well-done meats can contain cancer-causing heterocyclic amines, which form when meat is seared at high temperatures, and polycyclic aromatic hydrocarbons, which get into food when it’s charcoal broiled. “The recommendation to cut down on grilled meat has really solid scientific evidence behind it,” says Cheryl Lyn Walker, PhD, a professor of carcinogenesis at the University of Texas M.D. Anderson Cancer Center. If you do grill, add rosemary and thyme to your favorite marinade and soak meat for at least an hour before cooking. The antioxidant-rich spices can cut HCAs by as much as 87%, according to research at Kansas State University.

4.Caffeinate everyday

Java lovers who drank 5 or more cups of caffeinated coffee a day had a 40% decreased risk of brain cancer, compared with people who drank the least, in a 2010 British study. A 5-cup-a-day coffee habit reduces risks of oral and throat cancer almost as much. Researchers credit the caffeine: Decaf had no comparable effect. But coffee was a more potent protector against these cancers than tea, which the British researchers said also offered protection against brain cancer.

5.Water down your risk

Drinking plenty of water and other liquids may reduce the risk of bladder cancer by diluting the concentration of cancer-causing agents in urine and helping to flush them through the bladder faster. Drink at least 8 cups of liquid a day, suggests the American Cancer Society.

6.Load up on good greens

Next time you’re choosing salad fixings, reach for the darkest varieties. The chlorophyll that gives them their color is loaded with magnesium, which some large studies have found lowers the risk of colon cancer in women. “Magnesium affects signaling in cells, and without the right amount, cells may do things like divide and replicate when they shouldn’t,” says Walker. Just 1/2 cup of cooked spinach provides 75 mg of magnesium, 20% of the daily value.

7.Snack on Brazil Nuts

They’re a stellar source of selenium, an antioxidant that lowers the risk of bladder cancer in women, according to research from Dartmouth Medical School. Other studies have found that people with high blood levels of selenium have lower rates of dying of lung cancer and colorectal cancer. Researchers think selenium not only protects cells from free radical damage but also may enhance immune function and suppress formation of blood vessels that nourish tumors.

8.Burn off your risk.

Moderate exercise such as brisk walking 2 hours a week cuts risk of breast cancer 18%. Regular workouts may lower your risks by helping you burn fat, which otherwise produces its own estrogen, a known contributor to breast cancer.

9.Skip the Dry cleaner

A solvent known as perc (short for perchloroethylene) that’s used in traditional dry cleaning may cause liver and kidney cancers and leukemia, according to an EPA finding backed in early 2010 by the National Academies of Science. The main dangers are to workers who handle chemicals or treated clothes using older machines, although experts have not concluded that consumers are also at increased cancer risk. Less toxic alternatives: Hand-wash clothes with mild soap and air-dry them, spot cleaning if necessary with white vinegar.

10.Ask about Breast Density

Women whose mammograms have revealed breast density readings of 75% or more have a breast cancer risk 4 to 5 times higher than that of women with low density scores, according to recent research. One theory is that denser breasts result from higher levels of estrogen—making exercise particularly important (see #8). “Shrinking your body fat also changes growth factors, signaling proteins such as adipokines and hormones like insulin in ways that tend to turn off cancer-promoting processes in cells,” Walker says.

11.Head off Cell-phone risks

Use your cell phone only for short calls or texts, or use a hands-free device that keeps the phone—and the radio frequency energy it emits—away from your head. The point is more to preempt any risk than to protect against a proven danger: Evidence that cell phones increase brain cancer risk is “neither consistent nor conclusive,” says the President’s Cancer Panel report. But a number of review studies suggest there’s a link.

12. Block Cancer with colour

Choosing your outdoor outfit wisely may help protect against skin cancer, say Spanish scientists. In their research, blue and red fabrics offered significantly better protection against the sun’s UV rays than white and yellow ones did. Don’t forget to put on a hat: Though melanoma can appear anywhere on the body, it’s more common in areas the sun hits, and researchers at the University of North Carolina at Chapel Hill have found that people with melanomas on the scalp or neck die at almost twice the rate of people with the cancer on other areas of the body.

13.Pick a Doctor with a past.

Experience—lots of it—is critical when it comes to accurately reading mammograms. A study from the University of California, San Francisco, found that doctors with at least 25 years’ experience were more accurate at interpreting images and less likely to give false positives. Ask about your radiologist’s track record. If she is freshly minted or doesn’t check a high volume of mammograms, get a second read from someone with more mileage.

14. Eat clean foods

The President’s Cancer Panel recommends buying meat free of antibiotics and added hormones, which are suspected of causing endocrine problems, including cancer. The report also advises that you purchase produce grown without pesticides and wash conventionally grown food thoroughly to remove residues. (The foods with the most pesticides: celery, peaches, strawberries, apples, and blueberries. See the full list of dirtiest fruits and vegetables here.) “At least 40 known carcinogens are found in pesticides and we should absolutely try to reduce exposure,” Sellers says.

15.Do a folic acid check

The B vitamin, essential for women who may become or are pregnant to prevent birth defects, is a double-edged sword when it comes to cancer risk. Consuming too much of the synthetic form (not folate, found in leafy green veggies, orange juice, and other foods) has been linked to increased colon cancer risk, as well as higher lung cancer and prostate cancer risks. Rethink your multivitamin, especially if you eat a lot of cereal and fortified foods. A CDC study discovered that half of supplement users who took supplements with more than 400 mcg of folic acid exceeded 1,000 mcg per day of folic acid. Most supplements pack 400 mcg. Individual supplements (of vitamin D and calcium, for instance) may be a smarter choice for most women who aren’t thinking of having kids.

16. Increase your Calcium intake.

Milk’s main claim to fame may also help protect you from colon cancer. Those who took calcium faithfully for 4 years had a 36% reduction in the development of new precancerous colon polyps 5 years after the study had ended, revealed Dartmouth Medical School researchers. (They tracked 822 people who took either 1,200 mg of calcium every day or a placebo.) Though the study was not on milk itself, you can get the same amount of calcium in three 8-ounce glasses of fat-free milk, along with an 8-ounce serving of yogurt or a 2- to 3-ounce serving of low-fat cheese daily.

17. Commit to whole grains

You know whole wheat is better for you than white bread. Here’s more proof why you should switch once and for all: If you eat a lot of things with a high glycemic load—a measurement of how quickly food raises your blood sugar—you may run a higher risk of colorectal cancer than women who eat low-glycemic-load foods, found a Harvard Medical School study involving 38,000 women. The problem eats are mostly white: white bread, pasta, potatoes, and sugary pastries. The low-glycemic-load stuff comes with fiber.

18. Pay attention to pains

If you’re experiencing a bloated belly, pelvic pain, and an urgent need to urinate, see your doctor. These symptoms may signal ovarian cancer, particularly if they’re severe and frequent. Women and physicians often ignore these symptoms, and that’s the very reason that this disease can be deadly. When caught early, before cancer has spread outside the ovary, the relative 5-year survival rate for ovarian cancer is a jaw-dropping 90 to 95%.

19.Avoid unnecessary scans

CT scans are a great diagnostic tool, but they deliver much more radiation than x-rays and may be overused, says Barton Kamen, MD, PhD, chief medical officer for the Leukemia & Lymphoma Society. In fact, researchers suggest that one-third of CT scans could be unnecessary. High doses of radiation can trigger leukemia, so make sure scans are not repeated if you see multiple doctors, and ask if another test, such as an ultrasound or MRI, could substitute.

20.Drop 10 pounds.

Being overweight or obese accounts for 20% of all cancer deaths among women and 14% among men, notes the American Cancer Society. (You’re overweight if your body mass index is between 25 and 29.9; you’re obese if it’s 30 or more.) Plus, losing excess pounds reduces the body’s production of female hormones, which may protect against breast cancer, endometrial cancer, and ovarian cancer. Even if you’re not technically overweight, gaining just 10 pounds after the age of 30 increases your risk of developing breast, pancreatic, and cervical, among other cancers.

Source:Everyday cancer