What is the scientific explanation of headache?

Answer 1

Continuous pain in the head is of two types. One is called headache and the other is known as migraine in medical terminology. Both the types of pain are caused by pressing of the nerve endings. The difference between these two types of pain is due to different factors which bring pressure on the nerve endings. Tightening of muscles in the head and neck due to some reasons bring out pressure on the sensory nerves which identify this sensation as headache. Just as some water which has remained in elastic tube after the tap is turned off trickles out when the tube is pressed, the nerve endings also keep on sending a trickle of signals of unpleasant sensation to the brain. Therefore, as long as the nerves remain pressed headache does not stop.