Harvard University researchers reviewed several studies that suggest school-age kids gain weight faster over the summer. Cue: school holiday! One reason may be that their lives are less structured when school is out. While most adults don’t get off during school holidays, things like travel, weekends, and an influx of social events can throw you off schedule, disrupting your normally healthy eating and exercise habits. The key is to establish some consistency. Taylor says the easiest and most effective way to do this is to exercise first thing in the morning. “My early-morning clients are definitely the most consistent, and they continually reap better results,” he says.