The internet videos are alarming to some, thrilling to others: Gun enthusiasts spraying bullets from AR-15-style rifles equipped with an after-market trigger allowing them to shoot seemingly as fast ...

Cold sores are caused by the herpes simplex virus, usually herpes simplex virus type 1 (HSV-1). There is little to no evidence that specific foods trigger outbreaks. Common cold sore triggers include ...

Susan Bard, MD, is a board-certified general and procedural dermatologist with the American Board of Dermatology and a Fellow of the American College of Mohs Surgery. Treating melasma aims to reduce ...

Sexual arousal is your body’s physical response to sexual stimuli, while desire is the emotional interest in having sex. You can feel aroused without wanting sex, highlighting the importance of ...

Narcolepsy is a chronic sleep disorder that makes you extremely sleepy during the day. Doctors don’t know what causes it. But they do understand some of the risk factors and triggers that may bring on ...