There’s both fact and fiction to the rumors that twins run in families and tend to skip a generation. Here’s how heredity impacts your odds of conceiving twins.

Family photos from Kaleucagys, Kekova, Turkey. Photo by Anton Watman, via Shutterstock. Have you ever taken a peek at your family tree? If you trace back along those branches, you might discover some ...

It is a common belief that mental illness runs in families. While it is true that heredity plays a role, in reality, the vast majority of cases—such as schizophrenia, bipolar disorder, depression, and ...

Scientists have long suspected connections between heredity and disease, dating back to Hippocrates, who observed certain ...

A version of this article appears in the March 24, 1928 issue of Science News. Love our Health & Medicine stories? Our coverage would not be possible without the generous support of subscribers to ...

England’s King George III descended into mental chaos, or what at the time was called madness, in 1789. Physicians could not say whether he would recover or if a replacement should assume the throne.

The science of genetics is out of date and had better be revised or abandoned. Geneticists, fussing around for the last century with colored sweet peas and subnormal fruit flies, are out of touch with ...

Can the heredity of an organism be altered after conception? This age-old problem has now been attacked from a new angle: ducks. The doers are Professor Jacques Benoit, who holds the chair of ...

(1) “THE Task of Social Hygiene” was first published fifteen years ago. It very well deserves the place which it has won, and a new edition needs no recommendation here. There can be few books of that ...