Grades translate into expectations about one’s future. Internationally, girls now have higher expectations for their future careers than boys.9 Boys’ lower expectations can translate into depression, including one of its major symptoms, obesity. Obesity among boys and men is increasing worldwide. Roughly a quarter of Australian, British, Canadian, German, Polish, and Spanish boys and men are obese.10 A large study from the UK finds that boys’ IQs have dropped about 15 points since the 1980s.
