A neglected piece of the Alzheimer's puzzle has been getting increased scientific attention: why women are twice as likely as men to develop the disease.

Viraj Dhanda, a nonspeaking autistic teen, spent the first 14 years of his life trying to learn the basics, until his ...

When people think of DNA, they usually think of genes, the parts that code for proteins and drive inherited traits. But there ...

The chromosomes that demonstrate the sex of a human are XX and XY. Indeed, we get one of each from our parents. Women can only pass on the X chromosome, while it's male sperm that determines whether a ...