Visiting a forest can induce a significant increase in both the number and activity of natural killer cells, one of the ways our body fights off cancer.

Increased risk of metabolic complications starts at an abdominal circumference of 31.5 inches in women and 37 inches in most men, though it’s closer to 35.5 inches for South Asian, Chinese, and Japanese men.

Physical fitness authorities seem to have fallen into the same trap as the nutrition authorities, recommending what they think may be achievable, rather than simply informing us what the science says and letting us make up our own mind.

Is there a unisex chart to see what your optimal weight might be based on your height?

How do we explain studies that suggest overweight individuals live longer?

The most well-published community-based lifestyle intervention in the medical literature is also one of the most effective.

What are the effects of weight loss on natural killer cell function, our first line of immune defense against cancer, as well as kidney function and fatty liver disease?

Sufficient, sustained weight loss may cut the risk of fatal heart attacks and strokes in half.

Dr. Greger whips up some matcha ice cream inspired by a recipe in his How Not to Die Cookbook.

Weight loss can decrease dementia risk and improve mental performance and infertility.