The battles were over, but the soldiers still fought. Flashbacks, nightmares, and depression plagued them. Some slurred their speech. Others couldn’t concentrate. Haunted and fearful, the soldiers ...

Using valerian root can decrease nighttime awakenings and help you fall asleep faster. Valerian root supplements may ease menopause symptoms like hot flashes and sleep disturbances. Taking valerian ...

Tesla shareholders have already approved an investment by the electric-vehicle maker in Elon Musk’s xAI. Could SpaceX be next?

Controlled studies capture only a fraction of the effects of artificial intelligence. Economists should work with social scientists to find innovative ways to fully grasp this fast-moving field.