A few simple changes in your diet can improve your sleep, which means you'll be able to way up earlier and work out. "Exercise can actually improve sleep, particularly in the early part of the day," Dr. Avidan said.
It'll take time to adjust to working out at 6 a.m., but at least you won't have to wait for equipment to free up in the gym. Just in case you're wondering, lunch workouts won't hurt you, but Dr. Avidan did explain that exercise in the evening can be "quite disruptive."