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I just started working out, why do I feel tired and very worn out afterwards?This is mainly if I work out longer than twenty minutes at a time.Get better

3 doctors weighed in
Dr. Kenneth Weston
Family Medicine
2 doctors agree

In brief: Multiple causes

There are many reasons for fatigue with exercise.
If one has just started working out , the intensity of work out may simply be too high and needs to be reduced. Slowly increasing the intensity from a lower level. Medical conditions that can also lead to excess fatigue. A medical evaluation prior to further participation would be warranted especially if decreasing doesn't improve or if older.

In brief: Multiple causes

There are many reasons for fatigue with exercise.
If one has just started working out , the intensity of work out may simply be too high and needs to be reduced. Slowly increasing the intensity from a lower level. Medical conditions that can also lead to excess fatigue. A medical evaluation prior to further participation would be warranted especially if decreasing doesn't improve or if older.
Dr. Kenneth Weston
Dr. Kenneth Weston
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