Commuting via bicycle can save you money, but it can also can pose impotence risks for men - particularly if you are overweight or do not have a bike that is well fitted. Fortunately there are bike accessories that can help.

Irwin Goldstein, a urologist at Boston University medical center, is an often quoted expert on the subject. His verdict? Standard men's bike seats can be hazardous to some critical blood vessels and put men at risk for erectile dysfunction.

There are a couple of bike seats that can help - Hobson makes a couple of products including the EasySeat. Bycyle makes the Bi-saddle which is a little more expensive.

Besides being cheap impotence insurance these seats are also more comfortable - particularly for the occasional rider.mortgage calculator