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The increase in temperature caused by wearing tights or underwear will reduce the sperm count of men
The researchers tested two forms of iron oxide nanoparticles, which are biodegradable and can be guided and heated by a magnetic field as male contraceptives
The nanoparticles heat the testicles to 104 degrees Fahrenheit, shrink the testicles and inhibit spermatogenesis, and then gradually recover 30 to 60 days after treatment
Journal Reference :
Weihua Ding, Zhichuan Chen, Yayun Gu, Zhengru Chen, Yanqiong Zheng, Fei Sun.