Depression

• In 2015 the British Journal of Sports Medicine published a meta-analysis including 24 studies and a total of 193,166 patients which found a that sedentary behavior is associated with an increased risk of depression. [Source]

ADHD

• In 2015 the Journal of Abnormal Child Psychology published a 12-week study involving 202 children which found that physical activity for 31 minutes each day before school was superior to a sedentary classroom based intervention for controlling ADHD symptoms. [Source]