A little sunbathing, taking vitamin D supplements and eating foods rich in the vitamin, such as eggs and red meat, can all help you survive cancer. The vitamin also protects against heart disease and diabetes and strengthens our bones.

Eating one egg a day lowers the risk of developing the lifestyle disease, as it's known, and now researchers have discovered why they have their protective effects.

Just seeing eggs as being high in cholesterol is simplistic; instead, they contain many bio-active compounds that are good for us, say researchers from the University of Eastern Finland.

People who are taking an ACE inhibitor or an ARB drug for heart problems should stay at home and not meet up with people, say researchers from Louisiana State University.

Dr Malcolm Kendrick, a UK GP, estimates that people taking one of the drugs are four times more likely to die from the virus.

Despite the growth of the low-fats industry, a diet high in dairy fats seems to be protective, as several new studies have found. But digging further into the data, researchers from the University of Haifa in Israel have concluded the diet almost doubles the risk of cardiovascular disease (CVD) and diabetes for women—and yet protects men.

I can't tell you how many people I have met who have told me they used to be vegetarian or vegan, but they had to go back to eating meat because they didn't feel healthy or were hungry all the time.

In actuality, it can be quite easy to get all of the nutrients you need, including protein, if you just know what nutrients your body requires and where to find them. Plant-based foods are extremely high in complex amino acids and can provide quality protein as well as other nutrients.

Legumes are one of the best sources of protein for a vegan diet. The health benefits of legumes, which most of us know as beans, peas, peanuts and lentils, are that they are high in fiber, amino acids (which are the chemicals that combine to create proteins), folate (vitamin B9), zinc, iron and magnesium. Just make sure that all legumes are well cooked.

The incentives cost UK taxpayers around £1 bn annually—and the average family doctor can earn, on average, an extra £17,000 ($21,711) a year to prescribe drugs for a range of chronic conditions, such as heart disease, high blood pressure, stroke, diabetes and kidney disease.

But the patient isn't benefiting. A major review of cash-for-prescriptions schemes has found that the drugs aren't helping the patient live a longer life or reducing the rate of hospital admissions for conditions such as heart disease and cancer.

It's easier to follow than adopting a healthier diet or exercising, say researchers from the Salk Institute.

People eating their last meal of the day around 10pm aren't giving their body enough time to metabolize the food properly. They burn less fat and process glucose, sugar in the blood, poorly, which can lead to type 2 diabetes, say researchers from the Johns Hopkins University School of Medicine.

It reduces the risk of type 2 diabetes and heart disease, and even helps us lose weight.

Fasting for 24 hours intermittently—either every other day or for three days straight—can reverse the condition and eliminate the need for drug treatment.

Diabetics who had been taking insulin and medication for high blood pressure and cholesterol levels were drug-free after 10 months of intermittent fasting, researchers from the University of Toronto have discovered.

Researchers have identified 237 million medication errors that happen every year in England, and 2 percent of these—4.74 million—do serious harm to the patient, and a further 86 million errors are 'clinically significant', say researchers from the University of Manchester. Serious harm ranges from life-threatening adverse reactions to death.

A leaky gut is just that: our intestinal barrier weakens and allows bacteria into the bloodstream. And people who have hostile and angry confrontations with their partner end up with more bacteria in their blood, suggesting the upset has made the gut leaky.

Researchers from the Ohio State University tested the theory on a group of 43 healthy married couples. They were asked to talk about a sensitive issue, such as money or the in-laws, and they were observed via a video camera. Blood samples were taken before and after the argument, and the couples whose arguments became the most heated were also the ones with the highest levels of bacteria in their blood. In fact, the ones who had the most hostile confrontations had 79 per cent more bacteria in their blood than those who had a more equitable discussion.

Those four daily cups are enough to kick-start a protein called P27 that is found in the mitochondria—our cells' energy centres—that help protect the heart and repair damage to heart muscles after a heart attack.

This adds to the proven protective effects of coffee, which include lowering the risk for type 2 diabetes, heart disease and stroke.

A major study last year showed that the diet reduced the risk of cardiovascular disease, overturning the 'clogged arteries' theory that has warned for nearly 40 years that full-fat foods were a cause.

Taking between 2 and 4 grams of the vitamin every day can shorten a hospital stay by up to 9 per cent. It doesn't sound much, but these patients were in intensive care units (ICUs), and it was touch-and-go whether they would leave at all.

A high-fat diet changes the bacteria in the gut and makes you more likely to suffer from depression and anxiety as a result.

Researchers started investigating a possible link after noticing that obese people with type 2 diabetes were more likely to suffer from acute depression. While anyone can be depressed, the diabetic seems to feel it more keenly.

When laboratory mice are fed a high-fat diet, they become more erratic, and show signs of depression, anxiety and obsessive behaviour, say researchers from Harvard Medical School.