Most of us know that the hormone melatonin helps regulate our sleep. But it also seems to play another role - suppressing cancer growth.
From Michael Greger
In a Harvard University study, the diets of nearly 1,000 women were analysed before their morning melatonin levels were measured. Meat consumption was the only food significantly associated with lower melatonin production, for reasons that are as yet unknown.
One of the worst things you can do if you're worried about breast cancer is to cook beef, pork, fish or poultry at a high temperature - which includes frying, grilling and roasting.
Breast cancer is thought to use cholesterol to help the cancer migrate and invade more tissue.
Five hours a week of vigorous aerobic exercise can lower estrogen and progesterone exposure by about 20 per cent.
Although even light exercise is associated with a lowered risk of some other types of cancer, for breast cancer, it appears that leisurely strolls don't appear to cut it.
Ounce for ounce, herbs and spices have more antioxidants than any other food group.
Popeye was right about spinach: dark green, leafy vegetables are the healthiest food on the planet. As whole foods go, they offer the most nutrition per calorie.
You can be in excellent physical shape, with low cholesterol, a healthy body weight and good overall physical fitness - but that doesn't necessarily mean you're healthy.
The problem with all-or-nothing thinking is that it stops people even taking the first steps. The thought of never having pepperoni pizza again somehow turns into an excuse to keep ordering it every week.
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