You can have musculoskeletal injuries or even worse. The signs of over use can occur weeks or days after the injury. A sound program that is made for you will help make sure you are on the right track. Also proper rest between exercise sessions will allow you to recover from the demands on your body. If you do aerobic exercise, one day, go to weights the next and then do flexibility the next.
Endurance exercises can be the next and then start again.
Know the symptoms of an insulin reaction or hypoglycemia if you take certain oral agents. Stop immediately and get out those glucose tablets. If you don t have your meter with you - and you should, you know, take the extra calories and when you get home put an extra glucometer in your gym bag after you check your blood glucose level. It s winter. Make sure you keep your skin from drying out.