There have been plenty of theorists who have written about the nature of friendship among men compared with that among women. In part, this has been an attempt to explain how friendly relationships work between men and women, at least insofar as heterosexual friends are concerned. Despite this, no definitive way of describing two or more women as friends exists as distinct from a group of male friends. Platonic friendship is often used to describe friends who are male and female but where there is little or no sexual chemistry, and this can also apply to similar situations among groups of gay men and lesbians. Although some studies try to point out overall characteristics among friends being different with males compared to females, few offer genuine insights. The exception is with geriatric men who, on the whole, find it harder to find friends in later life compared to women.