22/10/2025
Ahead of the clocks changing this Sunday, I thought it would be important to recognise the effects this can have on mental health š
When the clocks change each autumn and spring, many people also notice a shift in their mood and energy levels. The transition, especially the move from daylight saving time to standard time in autumn, can significantly impact mental health.
One of the main effects is a disruption to the bodyās circadian rhythm ā the internal clock that regulates sleep, mood, and hormones. When evenings become darker earlier, people are exposed to less natural light, which can reduce serotonin levels and affect mood regulation. This often leads to feelings of tiredness, irritability and/or low mood. For some, the change can trigger Seasonal Affective Disorder (SAD), a type of depression linked to reduced sunlight during the colder months.
Sleep patterns can also suffer. Even a one-hour shift can cause temporary insomnia, grogginess, or difficulty concentrating, much like mild jet lag. Over time, this sleep disruption can contribute to increased stress and anxiety levels.
To ease the transition, experts recommend maintaining consistent sleep routines, maximizing exposure to daylight, and staying physically active. Light therapy lamps and vitamin D supplements can also help counter the effects of shorter days.
While the clock change can seem like a simple adjustment, itās important to recognize its deeper influence on mental well-being ā and take small, proactive steps to protect it.
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