Does working out help reverse effects of lack of sleep

Yes—exercise can partially offset some effects of a poor night’s sleep, but it does not replace sleep or undo every consequence. 1 2

• Morning exercise and blood glucose: Exercise in the morning can partly counter sleep-loss-related disruption in blood-sugar regulation; that benefit shouldn’t be assumed to reverse all other effects of lost sleep. 2
• Immune function: Exercise may adjust immune function in a helpful direction after sleep loss, but overly intense exercise can make you more vulnerable to infection. 3
• After a poor night: If you can’t get more sleep, exercise may help, but reduce its intensity and duration by about 25–50%. Sleep loss also raises injury risk, so be cautious with the workout. 4 5
• Sleep quality: Regular daytime exercise can improve sleep quality, particularly deep sleep; early-day high-intensity exercise may also support deep and REM sleep. 6 7
• Protect sleep time: Don’t sacrifice sleep to fit in exercise, or let exercise delay your bedtime. Exercise is not a substitute for adequate sleep. 8