The efficacy of light therapy in Attention-Deficit Hyperactivity Disorder (ADHD)

The efficacy of light therapy in Attention-Deficit Hyperactivity Disorder (ADHD)

Living with Attention-Deficit Hyperactivity Disorder (ADHD) can be challenging for many adults. Recent research explores the connection between ADHD symptoms, sleep activity patterns, and seasonal mood changes. This blog investigates a promising way - using light therapy - as an additional support for adults with ADHD during the fall and winter months.


Light Therapy on ADHD

This trial from 2006 comprised 29 adults who satisfied the DSM-IV criteria for ADHD. Participants received light therapy in the fall or winter for three weeks. Using a variety of instruments, including the Conners' Adult ADHD Scale and the Brown Adult ADD Scale, the researchers assessed the impact of light therapy. They also performed cognitive testing and score assessments.

The results showed that there was a significant reduction in both subjective and objective symptoms of ADHD when light therapy was used. Along with a noticeable shift towards an earlier circadian preference, mood enhancements were also observed. It's interesting to note that, rather than only reducing seasonal affective disorder symptoms, the study discovered that the most important predictor of improvement in ADHD symptoms was a shift to an earlier circadian preference.

In addition, in a study by Stephan, W. to et al. (2022), brain light therapy improved cerebral blood flow, decreased oxidative stress, promoted neuroplasticity, and stimulated synaptogenesis, improving adults' capacity to concentrate, plan, and control symptoms of ADHD. These results suggest that transcranial Photobiomodulation (tPBM) could serve as a safe alternative for managing ADHD.

In the darker days of fall and winter, adults with ADHD might find relief through light therapy. This non-invasive way not only addresses core ADHD symptoms but also positively influences mood and circadian rhythm. These findings open new doors for exploring innovative methods that go beyond the traditional, providing hope for those navigating the complexities of adult ADHD.



Rybak, Y.E. 2006. An open trial of light therapy in adult attention-deficit/hyperactivity disorder. Available Online:

Stephan, W., Banas, L.J., 2022. Efficacy of Photobiomodulation for Attention Deficit Hyperactivity Disorder (ADHD): Case Studies. Available Online:

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