His DNA solved a century-old jailhouse rape. The victim: his grandmother.

Living with hypersomnia, a disorder marked by sleeping dozens of hours straight and still never feeling truly awake.

Gabrielle Williams is nine years old. She weighs just 12 pounds. The mystery of “syndrome x” and the girls who never age.

On recreational genetics, privacy and the new vulnerability of family secrets.

What neuroscience is learning from code-breakers and thieves.

On the scientific research of Romanian orphans.

How a woman who couldn’t stop sleeping woke up.