When Melanie Avalon, 32, decided on a career in acting, she was well aware of the expectation for women in her industry to look youthful forever, so she began looking for ways to turn back the clock.

"I've been doing 'biohacking' before it was really a thing, like way back when I was in college," she says. Avalon was absorbed in all things health and wellness, including dietary changes like intermittent fasting.