All at some point we have felt anxious, insecure or under great pressure by something that we are afraid, this is anxiety. There are also those who feel a very great sadness, no longer interested in what you normally enthusiasm and feels tired and poorly focused, if this feels sadness on an ongoing basis, we can think about depression, which is accompanied by insomnia or sleep much, lack of appetite, inability to concentrate, guilt, headache, muscle pain.
Anxiety and depression can cause erectile dysfunction, or result: psychologically, dysfunction can generate negative symptoms of mood and block sexual response.

On the biological side, there are a series of chemical reactions in which they work neurotransmitters (chemicals that can work both for the emotions and the sexual response), depression can reduce these substances, leading to the decline in function erectile; there are other substances that increase in situations of anxiety or stress and also block the sexual response.
It is worth mentioning that some antidepressant medications can cause erectile dysfunction, which is why it is important that the doctor always directed towards his patient about the risks of taking them and taking options to combine treatments.