Sleep often slips to the bottom of the priority list when life gets busy. It's hard enough to wake up early, rush to work, battle traffic on the way home, and find something reasonably healthy for dinner. Evenings can fill up quickly, especially during the holidays, leaving your mind too wound up to drift off easily.

A powerful HIIT workout earlier in the day can improve sleep , but exercising too close to bedtime may have the opposite effect, according to a 2025 article in Nature Communications. High-intensity exercise within four hours of going to bed can make it harder to fall asleep and may shorten your total sleep time, particularly if you usually train earlier in the day.

The Sleep Foundation says that lighter forms of activity before bed may actually help you sleep more soun

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