Disrupting the Body’s Internal Clock

Our bodies have an internal clock, known as the circadian rhythm, which regulates sleep, energy, and mood. When daylight savings begins in spring, we lose an hour of sleep and experience a sudden shift in light exposure. For those with bipolar disorder, this disruption can destabilize mood and increase the risk of manic or depressive episodes.

The link between bipolar and daylight savings lies in how sensitive individuals with bipolar disorder are to changes in their circadian rhythms. Even small adjustments to sleep schedules or light exposure can have outsized effects on their mental health.

Sleep Loss and Mood Swings

The “spring forward” time change means losing an hour of sleep—a seemingly minor inconvenience for most people. However, for individuals with bipolar disorder, sleep deprivation can be a major trigger for mood instability. Lack of sleep is closely tied to manic episodes, irritability, and impulsivity.

Seasonal Patterns in Bipolar Disorder

Another key connection between bipolar and daylight savings is the seasonal nature of mood episodes. Manic episodes tend to peak in spring and summer when days are longer, while depressive episodes are more common in fall and winter when daylight decreases. The sudden shift caused by DST often coincides with these seasonal patterns, amplifying their effects.

Why Do Daylight Savings Changes Impact Bipolar Disorder?

Scientific studies show that sudden changes in light exposure during springtime can increase sensitivity in people with bipolar disorder. This heightened sensitivity affects brain chemistry, potentially triggering manic or hypomanic episodes. Additionally, the one-hour loss of sleep during DST disrupts normal sleep cycles, which are crucial for maintaining stability in individuals with bipolar disorder.

The connection between bipolar and daylight savings is further supported by research showing that irregular sleep patterns can worsen symptoms. Sleep deprivation not only impacts mood but also impairs decision-making and emotional regulation—factors that are already challenging for those living with bipolar disorder.

Managing the Effects of Daylight Savings on Bipolar Disorder
While daylight savings can be challenging for people with bipolar disorder, there are effective ways to manage its impact. Below are some strategies to help maintain balance during this seasonal transition.

Here are some practical, cautionary measures you can take:

1. Practical Strategies

Stick to a Consistent Routine
Maintaining regular sleep schedules, meal times, and daily activities helps stabilize your internal clock during daylight savings changes.

2. Prioritize Sleep Hygiene

Good sleep habits are essential for managing bipolar disorder. Use blackout curtains to control light exposure at night, avoid caffeine before bedtime, and create a calming pre-sleep routine.

3. Prepare for the Time Change

Gradually adjust your bedtime by 15–30 minutes each night leading up to DST to ease into the new schedule.

4. Monitor Symptoms Closely

Keep track of your mood and energy levels during the weeks surrounding daylight savings. If you notice significant changes, reach out to your healthcare provider for support.