The video “Let’s talk about ADHD” from the National Center for Mental Health is an overview of Attention Deficit Hyperactivity Disorder (ADHD). It covers the symptoms of ADHD, which include difficulty paying attention and hyperactivity, as well as the causes and risk factors, such as genetics and brain development. The video also mentions the different treatments available for ADHD, including medication, therapy, and lifestyle changes. Overall, the video aims to educate people about ADHD and help reduce the stigma surrounding the condition.