For many people, the change of seasons brings shifts in mood, energy, and sleep. But for those living with ADHD, these seasonal changes can sometimes feel even stronger.

Studies suggest that people with ADHD are more likely to notice dips in mood and energy during the fall and winter, when daylight is limited. Some may also experience seasonal affective disorder (SAD), a type of depression linked to shorter days and reduced sunlight.

At the same time, research shows that ADHD symptoms like restlessness and difficulty focusing may actually peak during the spring and summer months. In children and teens, symptoms sometimes ease in late summer and early fall. These patterns highlight that ADHD symptoms can be influenced by many factors — and not everyone experiences the same changes in the same way.

Sleep is an important piece of the puzzle. People with ADHD often struggle to fall asleep on time, and this can get worse when seasons change. Those who naturally stay up late, or who live farther from the equator where daylight hours shift more dramatically, may be especially affected.

Doctors and mental health professionals say it’s important for families and individuals to notice these seasonal shifts. If changes in focus, behavior, or mood become hard to manage, reaching out for support can help.

While more research is needed to fully understand the connection between ADHD and the seasons, one thing is clear: for many people, the change from summer to fall — or winter to spring — can be about more than just the weather. It can shape how ADHD feels day to day.