According to Annabeth did Percy really have ADHD and dyslexia what was her explanation
In Percy Jackson and the Olympians: The Lightning Thief, Percy is a sixth grader who has issues in school, partially because he has trouble focusing and reading. In the world of mortals, these problems have been attributed to Percy having ADHD and dyslexia.
When Percy gets to Camp Half-Blood and finds out that he's a demigod, he uncovers a lot of truths about his life. Annabeth Chase, a demigoddess with a lot of experience at Camp Half-Blood, tells Percy that his diagnoses of dyslexia and ADHD are wrong, and that many demigods are told that they have the same learning disorders. The reason he has trouble reading English is because his "mind is hard-wired for ancient Greek," and he can't sit still and pay attention in school because he has "battlefield reflexes" and his senses are "better than a regular mortal's." Percy realizes that Annabeth is telling the truth later on when she begins teaching him Ancient Greek, and he starts learning how to read in the language pretty easily.