Shrinking worries

Q I’ve read about an infection in Asia which causes a man’s penis to shrink, and I’ve started to worry I could catch it. Rich, 25

AStop worrying! It’s not an infection but koro, a psychological condition in Asia where men falsely believe their penis is shrinking, and that if it disappears altogether then they’ll die.

Sometimes it occurs in mass-panic epidemics, and men even tie weights onto their penis to stop it shrinking.