Fit­ness bat­tle of the sex­es-​
This video its about some fun com­pe­ti­tion but its sci­en­tif­ic true:
In­ves­ti­ga­tors at the Uni­ver­si­ty of Col­orado at Boul­der test­ed mus­cu­lar en­durance among 16 study par­tic­i­pants, they found that wom­en far out­last­ed men:

http://www.al­layurve­da.com/fem­i­nine­zone_news00.htm

and News in sci­ence : Wom­en beat men on mus­cle en­durance

http://www.abc.net.au/sci­ence/news/sto­ries/s188504.htm

Men's mus­cles may be larg­er than wom­en's, but when push comes to shove the male mus­cle wimps out a lot soon­er. Nor­mal­ly the guy out­weighs the girl, so he does have an ad­van­tage there, how­ev­er, pound for pound mus­cles , fe­males are def­i­nite­ly stronger than guys.
In the past the fe­male body was mere­ly re­gard­ed as a weak­er, less ef­fi­cient, form of the male body.Be­cause of these views on the fe­male body, wom­en were ac­tive­ly warned by their physi­cians not to en­gage in ex­er­cise, be­cause their bod­ies were too weak to han­dle it. Men, on the oth­er hand, have been ac­tive­ly ex­er­cis­ing and en­gag­ing in sports for about as long as men have ex­ist­ed. in this new cen­tu­ry, wom­en are get­ting stronger .Since 2003 ,in USA , wom­an out­num­bered man in gym , they tend to work out more than men .
Stronger sex ? It looks like we can throw yet an­oth­er sex­ist male the­o­ry in­to the dust­bin !!!