Check your health. If you have high blood pressure or cholesterol, unstable blood-glucose levels or chest pains when walking up stairs, get those symptoms under control before hitting the gym. Update your prescription medications and make sure to take only the drugs you need.
Find a safe workout zone. If you choose to exercise at home, make sure it's safe. Keep hallways and other areas well lit. Remove loose rugs that can get caught underfoot. Clean up any water spills on the floor. And wear proper athletic shoes. Bedroom slippers, no matter how comfortable, don't count.
Improve your balance. The better your...