Jim J Solo wrote on Apr 23^rd, 2013 at 7:23pm:

After the two trips last fall I was left with one simple impression. "Guys are stronger, but gals are tougher"

I have heard that mentally women can be a tough group if need be. One of my favorites comes to mind.......Margaret Thatcher  ;).

On the other hand (now that my male chauvinist disclaimer is firmly in place  ;D ) I know lots AND lots of women folk who would not do well with heat, mosquitos, cold wet weather and a great deal of physical exertion. So I would beg to differ.......

My take is fairly independent of sex........everyone is an individual and toughness of spirit cannot be generalized by gender. What seems plausible though is the physically stronger one is the more apt one would be able to deal with the demands placed on the body.........when you become wore down physically it can be hard to be "tough" mentally regardless of sex.