Read an article recently where it was said that on average, dick size has increased compared to previous generation, this is due to better nutrition and hormonal changes causing earlier puberty.
However another problem has emerged, that is, a drop in fertility due to larger proportion of malformed sperm observed in today's younger generation males. This is believed to be caused by our near-constant exposure to electromagnetic waves daily from WiFi and mobile phones.
Especially from mobile phones which we typically carry in our pants pocket
Wearing aluminium foil lined underwear is recommended.