Science explains seasonal changes in mood and energy

Seasonal changes in autumn can significantly impact mood, energy levels, and appetite. Scientific research indicates that reduced daylight hours disrupt the body's circadian rhythm, which is the internal 24-hour clock. This biological shift affects hormone secretion, including melatonin, which regulates sleep and alertness.

Beyond light exposure, colder temperatures and decreased physical activity during autumn and winter can contribute to lower energy levels. People often spend more time indoors and engage in fewer social or outdoor activities during these months, which can further influence well-being.

To manage daily energy fluctuations, experts suggest strategic rest. Dr. Michael J. Breus recommends a ‘power nap’ of 20 to 30 minutes, ideally between 1 p.m. and 3 p.m., to restore mental clarity. He emphasizes that a midday nap is a strategic recharge rather than a replacement for nighttime sleep, noting that longer naps may cause grogginess or disrupt nocturnal sleep patterns.