From S. W. Mackereth
Conwy, North Wales
I read with interest the article about our possible sixth sense (“The sixth
sense”, 25 January, p 36). It has always fascinated me that women living closely
together eventually synchronise their menstrual cycles. Could the vomeronasal
organ mediate this phenomenon, I wonder?
If so, the implications could be interesting, and profitable. Imagine a
contraceptive which utilised and manipulated this forgotten sense. Perhaps the
birth control of the future could be housed in a cologne bottle or be mixed with
the air freshener. Women wishing to ensure fertility might have to go around
with a nose clip on.
