Imagine being unable to read a paragraph or follow a conversation without your mind wandering. Losing track of time is something you’re known for among family and friends, and you can’t seem to meet deadlines despite your best efforts. Your tendency to speak without thinking sometimes bruises feelings. You may occasionally interrupt people so you don’t forget what you want to say. Now imagine your friends and family telling you that attention deficit hyperactivity disorder (ADHD) isn’t a real condition, and you should just try harder.