psy titbit no2

more interesting bio psy stuff!
-when grps of women live together, their menstrual cycles will tend to become synchronised... yah me n my frenz tokked bout this n realised tt our menstrual cycles tend to be abt the same as our mums' or sisters'...

-when physical attractiveness of guys r rated, it actually says sth bout their semen quality instead... higher attractiveness ratings correlate with better sperm quality... hmm so is it tt being attractive makes one have better sperms or issit tt having better sperms make one attractive???

-an expt was done in which some males were asked to wear a tshirt to slp for 2 consecutive nites, then these tshirts were smelled by some women (yewwwww smelly lor!) anw it was found tt the women preferred the shirts tt had been worn by males with the most genetically dissimilar immune systems to their own.. evolutionally this is gd cos the offspring will have a greater mix of genes for better protection... seems like we can 'smell-spot' our future husbands!

-males tend to have a longer ring finger than index finger while females tend to have the same length or shorter ring finger.. go measure! sth to do with the sex hormones...

tt's all folks! =)