5 min video clip – Fascinating information about your body over a 24 hour. Did you know afternoon workouts are considered best for muscle building? So many try to work out in the morning,yet studies suggest that you may gain 20% more muscle strength by working out in the afternoon. Your airways are more open, your heart works more efficiently, and your reaction time is at its peak. Much of this has to do with your core body temperature peaking later in the day. Even most sports records are achieved between 3 PM and 8 PM.