"Your body needs to repair itself, and this is truly when the muscle building comes into play," Thurman said. How you allow your body to rest is up to you. Dr. Hatamiya recommends 24 to 48 hours of rest after new or intense bouts of exercise to allow your body to properly recover. During that time, consider doing activities like yoga, foam rolling, or stretching.
However, Thurman pointed out that you can also keep strength training in your routine, if you like, as long as you avoid working the same muscle groups two days in a row.