What would happen if you take viagra (sildenafil) or Cialis without a erectile dysfunction?

Here are some... For a young at 20, his use of Viagra (sildenafil) or Cialis is virtually unnecessary; if he does, he has intensely driven and slaved by unlimited pursuit for sexual pleasure. As a result, in time, he will become negligent with other aspects of life to survive and grow. So, overindulgence and obsession are the most common chronic killers of life. So, it such drug is needed, consult the doctor for safety.