“Are ADHD and Asperger Syndrome connected, or do they just happen together sometimes?”

People often get confused about these two conditions, thinking they might be the same or related in some way. At first, ADHD seems like a lack of focus, while Asperger Syndrome (a type of high-functioning autism) seems like the opposite. But then, ADHD also has something called “hyper-focus.” So, what’s the difference?