Your DNA contains millions of genetic variants that interact with each other in ways that affect whether diseases such as ...

One gene causes one trait or a specific illness. When doctors use genetics, it's usually to try to identify a disease-causing ...

Genetic mirroring gives adoptees and foster youth reflections of self. Without it, identity feels like a blank mirror, fueling confusion, loss, and a lifelong search for belonging.

Scientists have long known that there’s a link between heredity and personality – that who we are is in part influenced by who came before us. That doesn’t give you an excuse for, say, being a jerk ...