Should people over 75 continue colonoscopies?

The American Cancer Society recommends screening for colorectal cancer in adults beginning at age 45 and continuing through age 75. However, adults over the age of 75 with a history of precancerous polyps—also known as adenomas—are ...

Why fasting can lead to a longer lifespan

Restricting calories has long been recognized as a powerful way to live longer, with periods of intermittent fasting proving more effective than a steady diet. However, the mechanism behind this phenomenon has been unclear. ...

Could a gut microbe influence muscle strength?

The trillions of microbes living in the human gut are increasingly recognized as important partners in human health. Scientists have linked the gut microbiome to several aspects of health, from metabolism and immunity to ...

Testosterone improves fat distribution for older women

As we age, the amount and distribution of fat in our bodies changes. Most fat is subcutaneous—meaning it is stored just under the skin. Subcutaneous fat generally does not have detrimental health impacts. In fact, we need ...

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