As we age, our body keep on developing from newborn to adulthood. When we our adult stage our body starts to deteriorate, we suffer some short term memory loss, as it advance can lead to dementia or Alzheimer's. To men sexual dysfunction may play a big role in our emotional aspect. Most old men suffer from erectile dysfunction, study suggest that it is just lack of the nitric oxide. You can get some this in medicines, but you can get it naturally here are some.