Many men around the world have these erection problems, and the number of them increases as men age. An erection is hard for most men to get and keep up. Next on the list are problems with less drive and low sperm count. Men also face a number of risks, such as being overweight, having diabetes or heart problems, or taking prescription drugs that can make them sad or nervous. Being sick with these things can make it harder to get or keep an erection.