As the end of Daylight Saving Time approaches on November 2, 2025, Allegheny Health Network (AHN) is alerting the public to the possible effects that less sunlight and shorter days can have on mental health. The network is focusing its message on Seasonal Affective Disorder (SAD), a form of depression that occurs at specific times of year, usually during fall and winter.
Seasonal Affective Disorder disrupts the body’s internal clock due to reduced exposure to natural light. This change can impact brain chemicals such as serotonin and melatonin. People with SAD may notice lower energy, shifts in appetite or sleep habits, trouble concentrating, and persistent sadness or hopelessness.
Data from the American Psychiatric Association indicate that about 5% of adults in the United States experience SAD each year, with symptoms sometimes lasting up to 40% of the year. Young adults and women are more likely to be affected by this condition.
Alicia Kaplan, MD, psychiatrist and medical director for AHN’s Center for Adult Anxiety and OCD, said: “The transition out of Daylight Saving Time often marks the beginning of a period where many people experience a decline in mood and energy. While it’s normal to be a bit more tired as the days feel shorter, for some, these feelings can escalate into a more significant struggle with Seasonal Affective Disorder. Understanding the symptoms and proactively implementing coping strategies can make a substantial difference.”
Dr. Kaplan outlined several strategies to help manage or prevent SAD:
– Maximize time spent outdoors during daylight hours.
– Use light therapy under medical supervision if needed.
– Keep consistent sleep routines.
– Engage in regular physical activity.
– Maintain a balanced diet low in processed foods and excess sugar or caffeine.
– Stay socially connected with friends and family.
– Practice stress management techniques like mindfulness or meditation.
– Seek professional help if symptoms persist or interfere with daily life.
“Early intervention and a proactive approach are key to managing SAD,” Dr. Kaplan added. “We encourage anyone experiencing symptoms to reach out to their primary care physician or a mental health specialist.”
For those seeking support through AHN’s Psychiatry and Behavioral Health Institute, specialists are available at 412-330-4429. Immediate assistance is also offered via The Hope Line at 1-800-SUICIDE (784-2433).
