8 daily habits that seem healthy, but do more harm than good
Exercise
You can do a number on your body if you hit the gym too hard. Overuse can damage joints, tendons, ligaments, and even your heart. Women who exercise too much may start missing periods or speed up the bone loss that leads to osteoporosis. How much is too much? If your workouts leave you exhausted or irritable, or if you have a hard time sleeping, eating, or concentrating, it might be time to scale back.
