The bike can make you impotent

The boda boda are bicycle and moto taxis used for public transport in East Africa. But scientists in Kenya have discovered that riders of the boda boda may lose their sexual drive if they do not go easy on the pedal. Dr Isaac Wamalwa is one of the researchers who carried out the study.

(Picture: An old bicycle saddle. Credit: Yamtono_Sardi. Collection: iStock / Getty Images Plus)