Exercise, extreme temperatures, or events that make you feel nervous or frightened can all cause you to sweat, or perspire. Sweat, which is 99% water and 1% salt and fat, prevents overheating by cooling you as it evaporates. However, hyperhidrosis, or excessive sweating, can occasionally happen even while you’re at rest or in a cold atmosphere. Without question, excessive and uncontrollable sweating can cause both physical and psychological pain. The good news? You can take action to manage the condition. The causes and treatments of hyperhidrosis are examined by Denise Pate, M.D., a board-certified primary care physician and medical director at Medical Offices of Manhattan in New York. Read the article.