You feel the most pumped to work out at night, but deadlines, family, friends and Mad Men have made it hard to stick to a schedule. Try picking an evening class (maybe even a pricey yoga or spin session) and treating it like a meeting or a social obligation. When you have a regular fitness appointment, you schedule the rest of your life around your workout instead of trying to fit your workout into your life, says Michelle Kennedy, MS, Best Life fitness expert. If that doesn't work, you may have to override your natural rhythms. The first week or two might be tough, but Kennedy swears a.m. workouts get easier over time. And she should know: because of her schedule and two young children, she needs to leave for the gym by 4:30 a.m.
Read more: The best time of day to work out