Sleep Eight Hours
If you're skipping out on sleep to hit the gym, you may not actually be doing yourself a favor. "Sleep is a huge thing for weight loss that people don't pay enough attention to," says Roshini Raj, MD, a clinical associate at NYU and the medical advisor for the Lose It! weight loss app. "Sleep deprivation has been linked to obesity and weight gain," she adds.
When sleep deprived, your body releases cortisol, epinephrine, and norepinephrine. These are hormones that signal stress. "They cause weight gain, they affect metabolism long-term and what happens is you're more likely to get up in the morning and crave sweet, fatty things," says Dr. Anderson. Both Dr. Raj and Dr. Anderson recommend logging eight hours nightly — even if that means starting your workout later.