Attention Deficit and Hyperactivity Disorder – ADHD is a range of problem behaviours associated with difficulties with attention span, including restlessness and hyperactivity.
Anhwylder Diffyg Canolbwyntio a Gorfywiogrwydd – mae ADHD yn gasgliad o ymddygiadau problematig sy’n gysylltiedig ag anawsterau canolbwyntio, gan gynnwys anniddigrwydd a gorfywiogrwydd.