The problem is that when men reach 30, their hormone metabolism will get impaired, so the hormones that rule semen production will be lower than they desire.
You must be wise in bonding and stress as they are just things that you will have to reactivate in any relationship.
This will lead to penile erection failure if cross-trained to work on it.
Remember that the body is your friend, and if it can be trained to cope with your stress, it will be able to cope.
