Goods news for the nerds! Apparantly, smart guys have healthier and more numerous sperm than previously thought.

Factors such as lifestyle and diet were thought to play the main contributing role in whether or not someone was considered healthy and intelligent; now, most of it may be down to your genes and whether you're dad was a smartie or not.

"The study was based on 425 men who undertook several intelligence tests and provided semen samples."