Andrew Huberman· PhD
Now, if you want to emphasize performance, then typically people will do best exercising three hours or 11 hours after waking.
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Now, if you want to emphasize performance, then typically people will do best exercising three hours or 11 hours after waking.
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I think there are however, a couple of windows that the exercise science literature and the circadian literature points to as windows related to body temperature in which performance, injury, in which performance is optimized injury is reduced and so on. And those tend to be 30 minutes after waking. And that probably correlates with the inflection in cortisol associated with waking whether or not you've gotten light or not, three hours after waking, which probably correlates to the rise in body temperature sometime right around waking. And the later afternoon, usually 11 hours after waking which is when temperature tends to
And those tend to be 30 minutes after waking. And that probably correlates with the inflection in cortisol associated with waking whether or not you've gotten light or not, three hours after waking, which probably correlates to the rise in body temperature sometime right around waking. And the later afternoon, usually 11 hours after waking which is when temperature tends to peak.
But the research shows that at least for performance, afternoon exercise might be better in terms of avoiding injury, et cetera.
I think there are, however, a couple of windows that the exercise science literature and the circadian literature points to as windows related to body temperature in which performance is optimized, injury is reduced, and so on. And those tend to be 30 minutes after waking, three hours after waking, and the later afternoon, usually 11 hours after waking, which is when temperature tends to peak.
Uh you said the vast number of of papers that have explored ideal exercise timing point to the afternoon as the best time. I've seen those papers also and my takeaway from those the kind of gestalt of of of those papers in my view is that if you're interested in performance that the afternoon is better because your body's warm body temperature tends to be appropriate for performance
three hours after waking or 11 hours after waking seem to be ideal times to work out.
So the late afternoon or evening may be the best time for exercise. And there are many physiological reasons for that. One is, for exercise, we need much better muscle tone, joint flexibility, and less risk for injury.