You thought that wild weekend from months ago was ancient history? Think again. While blood tests only catch drug use from the past few days and urine tests stretch to maybe a few weeks, there’s a ...

WASHINGTON (AP) — Kirk Odom was convicted of a 1981 rape and robbery after a woman identified him as her attacker and an FBI specialist testified that hair on her nightgown was similar to hair on Odom ...

Imagine going for your annual wellness checkup, and instead of a blood draw, the nurse simply plucks a few strands of hair. Through a computer analysis of those strands, maybe even within the short ...