How to Tell If You've Had a Good Workout
by Beth Skwarecki on Vitals, shared by Beth Skwarecki from Lifehacker on (#59DF7)
Exercise shouldn't feel horrible-although it can often feel hard. It's tempting to think of soreness or sweat as a sign of a good workout, but neither of those really tell you whether what you're doing is improving your health or making progress toward your goals. Instead, look at some of these measures.