You should also allow your body a proper recovery period after vigorous exercise.This recovery period will depend on your condition and your sport.Runners,for example,usually allow themselves a 48-hour recovery period between hard runs.So if you were to go out and run hard for 4 or 5 miles,the next day you should run at a more relaxed pace.Swimmers don't need as long as a recovery period-perhaps 24 hours.But there are people who might require a five-or six-day recovery period 8 You should also allow your body a proper recovery period after vigorous exercise.This recovery period will depend on your condition and your sport.Runners,for example,usually allow themselves a 48-hour recovery period between hard runs.So if you were to go out and run hard for 4 or 5 miles, the next day you should run at a more relaxed pace. Swimmers don’t need as long as a recovery period — perhaps 24 hours. But there are people who might require a five-or six-day recovery period