The more quality you can handle without breaking down, the more fit you become sooner. Without incorporating effective rejuvenation methods into your daily routine, trying to do more and harder workouts will only spell doom -overtraining, injury, or burnout. Let's take a quick look at the effects of hard training on an endurance athlete. To repair this kind of damage the body needs time. The time to recover depends on your individual characteristics.
Young athletes recover faster than older ones.
Experienced athletes faster than novices. Highly fit people faster than those who are unfit. Low psychological stress also speeds recovery. One study found that women recover faster than men. How long it takes you depends on your mix of these variables, It could easily take 72 hours to be ready to go again.