evidence: Pall M., Wi-Fi is an important threat to human health, Environmental Research Volume 164, July 2018, Pages 405-416 (Review paper) "Repeated Wi-Fi studies show that Wi-Fi causes oxidative stress, sperm/testicular damage, neuropsychiatric effects including EEG changes, apoptosis, cellular DNA damage, endocrine changes, and calcium overload. Each of these effects are also caused by exposures to other microwave frequency EMFs, with each such effect being documented in from 10 to 16 reviews." Wi-Fi is thought to act via voltage-gated calcium channel activation. [...] Sperm count, motility and DNA integrity were the most affected parameters when exposed to RF-EMR emitted by Wi-Fi transmitter. Unfortunately, sperm viability and morphology were inconclusive. Structural and/or physiological analyses of the testes showed degenerative changes, reduced testosterone level, increased apoptotic cells, and DNA damage. These effects were mainly due to the elevation of testicular temperature and oxidative stress activity. In conclusion, exposure towards 2.45 GHz RF-EMR emitted by Wi-Fi transmitters is hazardous on the male reproductive system. [...] Oni, M.O., D.B. Amuda and C.E. Gilbert. "Effects of radiofrequency radiation from WiFi devices on human ejaculated semen." International Journal of Recent Research and Applied Studies, vol. 9, no. 2, 2011, pp. 292-4.