After male volunteers were randomly assigned to smell either one of the worn shirts, or a new unworn one, saliva samples showed an increase in testosterone in those who had smelled a shirt worn by an ovulating woman.
Muškarcima volonterima je nasumično dodijeljeno da pomirišu svaku od majica, kao i novu, nenošenu, uzorci sline pokazali su veći udio testesterona u onih koji su mirisali majicu žene koja ovulira.