The announcement comes after the FDA became aware of more than 40 cases of "DRESS syndrome" linked to the seizure medications levetiracetam and clobazam.
People with PTSD feel like they're reliving past experiences in the present. This may be tied to how the brain processes memories of those experiences.
Trans and gender-diverse people people who take testosterone face a risk of blood thickening, but the largest study to date in the U.S. suggests that this side effect is rare.
Exposure to cosmic radiation and weightlessness in space could increase the risk of astronauts developing erectile dysfunction, according to research in rats.
A compound in grape skins called quercetin might disrupt alcohol metabolism, causing some people to get headaches after drinking red wine, a lab study suggests.