Does low testosterone cause reduced odor and sweating in males?

Yes. Testosterone levels are directly correlated with the production of body oils, ie. Sebum. This is the substance that leaves "fingerprints." did you know that babies leave virtually no fingerprints, and a man's will last longer on a surface than a female? With lower oil production, bacteria that produce body odor have less to break down into acrid odor. Yes, you will perspire less!