My understanding is that phone near your genitals is not recommended at least for men because the increase in heat affects your testicular production, like any

My understanding is that phone near your genitals is not recommended at least for men because the increase in heat affects your testicular production, like any increased heat source would (between the heat of battery usage and the non ionizing radiation from the radio). I remember my science teacher talking about it in high school, and that was pre smartphone era (~2003 or so). I also remember it saying that guys liked wearing boxer and jeans and the increased friction was pushing more heat there anyway. Now every 6 months we have a study about low and lowering sperm count in males, and between that and food changes and microplastics overabundance and ... It feels like that's a lost cause.