The document summarizes recent discoveries about autism. It discusses that autism is more commonly diagnosed today, affecting 1 in 88 individuals. It also mentions that autistic individuals have higher levels of growth hormones, which may explain their larger head circumference. Additionally, research suggests autistic people are less concerned with what others think of them and have greater ability to process information compared to others. The document also notes some autistic children have distinctive facial features and premature babies have a higher risk of developing autism. Finally, it proposes some autism genes may have provided advantages for hunting and gathering in the past.