Circadian Rhythm

The body's internal 24-hour clock governing sleep, wakefulness and hormone cycles — often disrupted by jet lag and long-haul travel.

Updated 2026-01-15·3 min read·Share

Definition

Your circadian rhythm is the natural cycle that regulates when you feel alert or sleepy. Crossing time zones disrupts this clock; wellness practices — light exposure, sleep rituals and recovery treatments — can help realign it after travel.

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