Astrocytoma of the brain is the most common type of childhood brain cancer. It begins growing in brain cells called astrocytes, usually before ten years.
Male sexual dysfunction, also called erectile dysfunction or impotence, is characterised by a man not being able to get or maintain an erection for sex.
Stress or anxiety is a common condition. A person feels too much demand, because of their life circumstances or putting too much pressure on themselves.
Tension-type headaches are a type of primary headache with no apparent cause. They cause dull pain radiating from the forehead to the neck and shoulders.