you do realize that estrogen is the hormone that is responsible for stimulating and controlling the male libido , right . its not testosterone.. testosterone is just there to aromatize and create estrogen and estrogen is what drives the libdio.
experimenting with anti estrogens is the best way to destroy your libido..
also, having too low of body fat will destroy libido and keep E levels down. you say your only 5% body fat (which is contest condition and not really healthy to be at for more then a few weeks).
the aromatase enzyme , which creates estrogen (which again stimulates the male libido) is contained in fat cells .. the lower your BF% the lower your rate of aromatization. and thus the lower your libido.
the lower your BF%, your libido is supposed to go down (because estrogen also goes down).. this is part of the evolution of mammal species.
the reason why estrogen, which controls the libido, is created in fat cells , is so that during times of famine and starvation (when BF% goes way down), you lose your sex drive and you don't procreate and have off spring.. your not supposed to procreate and have offspring during times of famine and starvation, mammals are not to have children when they can't even feed and support themselves.
BUT during times of plenty, when BF% is high, your estrogen levels will thus then be higher and so then will your libido and ability to procreate.
this is why estrogen and libido are directly related to body fat %





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