There are so many reasons behind this erection problem. Stress, depression and tension are the major causes of erection problems nowadays. Unhealthy lifestyle leads to these types of problems. But this is not like a permanent problem. You can overcome it by making your lifestyle healthy. Eating healthy lovemaking friendly foods and exercise dailly are the best ways to overcome it naturally or you can also take sildenafil citrate for instant result. make sure you consult with your doctor before taking this medication. You can also visit http://www.webmd.com/erectile-dysfunction/tc/erection-problems-erectile-dysfunction-topic-overview for more information. Best wishes and good luck!!!!!!!!