Got this from some academic health article. Wonder now if all those years with plenty fun off-road riding with hard and narrow seats has taken its toll, info to all young guys it still matters.. "...You can also purchase specially made seats that are better designed for example they are softer and better shaped to reduce the chances of becoming impotent. The seats should be wide and not narrow. These seats are designed for males who ride long distances. You can also buy covers for the seat that are softer and well cushioned (some are filled with gel) that will reduce the pressure in the genital area. Another solution is to wear padded biking shorts. Also if you feel numbness in your genital area, stop riding for a few days. Instead, use your car and if you don't have one use public transport to move around."