My HormonologyBothered by a headache, sore joints or other discomfort? You’ll feel better when you stand or sit up straight, reveals a study in the Journal of Experimental Social Psychology. Good posture strikes a double-blow to pain: It boosts confidence, which makes you feel like you’re more in control of what’s causing your problem—a key factor for overcoming discomfort—plus, it prompts the body to churn out more testosterone—a hormone that makes you less sensitive to pain.