Humour appears to develop from aggression caused by male hormones, according to a study published in this week?s Christmas issue of the BMJ.Professor Sam Shuster conducted a year long study observing how people reacted to him as he unicycled through the streets of Newcastle upon Tyne. What began as a hobby turned into an observational study after he realized that the huge number of stereotypical and predictable responses he received must be indicative of an underlying biological phenomenon.
