We are aware of the effect the winter months and short daylight hours can have on our mood. For some it can bring about a seasonal depression. However, for people suffering from Attention Deficit Disorder the lack of sunlight can exacerbate their condition.

A new study from the Centre for Addiction and Mental Health (CAMH) suggests that light therapy, during the fall and winter months, may be a useful supplementary treatment for adults with ADHD. This study is the first evaluation of light therapy in adults with ADHD.

• Dr. Robert Levitan, Head of Depression Research at the Centre for Addiction and Mental Health (CAMH) and professor of psychiatry at the University of Toronto