“It’s really controversial, because people are tied to their routines and want to do CrossFit every day,” says Alisa Vitti, author of WomanCode and creator of an online system of the same namethat helps women feel better by tuning in to daily hormonal changes happening in their bodies. “You actually need to create a workout regime that’s sensitive to the neurohormonal shifts that are happening weekly.” She’s not saying that because she thinks you can’t handle the cramps. Being responsive to your body’s needs based on its constant biochemical changes can help you avoid adrenal fatigue and feel your best all month long (without cramps!). It’ll also help you give yourself a break. “We get frustrated because we think ‘I should be able to go do the same boot-camp class and crush it like I did last week, but for some reason this week I want to stay home and eat popcorn. What’s wrong with me?’” Vitti says. Here’s Vitti’s expert advice on how to work out during all four phases of your menstrual cycle…