Women’s health

A new study has discovered that vitamin D regulates calcium in a section of the intestine that previously was thought not to have played a key role. The findings have important implications on how bowel disease, including ulcerative colitis and Crohn's disease, may disrupt calcium regulation.

A protein called CatSper1 may act as a molecular 'barcode' that helps determine which sperm cells will make it to an egg and which are eliminated along the way.

A new paper analyzes existing research to look at reasons why COVID-19 symptom severity and mortality are more frequent in men than in women and in older people. The research suggests female reproductive steroids play a protective role.

Compared with people who ate meat, vegans with lower calcium and protein intakes on average, had a 43 percent higher risk of fractures anywhere in the body (total fractures), as well as higher risks of site-specific fractures of the hips, legs and vertebrae, according to a new study.

By disabling a function of a set of cells in mice, researchers appear to have halted the process that breaks down bone, a potential boon for osteoporosis treatment.