From: Sex at Dawm, pps 360-361
In 1995, Swiss biological researcher Claus Wedekind published the results of what is now known as the “Sweaty T-shirt Experiment.” He asked women to sniff T-shirts men had been wearing for a few days, with no perfumes, soaps, or showers. Wedekind found, and subsequent research has confirmed, that most of the women were attracted to the scent of men whose major histocompatibility complex (MHC) differed from her own.9
This preference makes genetic sense in that the MHC indicates the range of immunity to various pathogens. Children born of parents with different immunities are likely to benefit from a broader, more robust immune response themselves.
Excerpt from: Sex at Dawn
In a nutshell, here’s the story we tell in the following pages:
A few million years ago, our ancient ancestors (Homo erectus) shifted from a gorilla-like mating system where an alpha male fought to win and maintain a harem of females to one in which most males had sexual access to females. Few, if any experts dispute the fossil evidence for this shift.8
But we part company from those who support the standard narrative when we look at what this shift signifies.The standard narrative holds that this is when long-term pair bonding began in our species: if each male could have only one female mate at a time, most males would end up with a girl to call their own.
Excerpts from: Sex at Dawn
“A healthy relationship with sexuality can be a strong positive influence on overall emotional and physical well-being. But understanding human sexual drives and needs and adapting them to social constraints and moral and religious precepts is tricky.
"Sex At Dawn challenges conventional wisdom about sex in a big way.
"By examining the prehistoric origins of human sexual behavior the authors are able to expose the fallacies and weaknesses of standard theories proposed by most experts. This is a provocative, entertaining, and pioneering book. I learned a lot from it and recommend it highly.” – Andrew Weil, M.D., world famous integrative health expert and author.