Utilitarianism is one of the best known and most influential moral theories. Like other forms of consequentialism, its core idea is that whether actions are morally right or wrong depends on their effects. More specifically, the only effects of actions that are relevant are the good and bad results that they produce.
Serotonin is thought to be the underlying neurotransmitter involved in migraine, based on a lower than normal level of serotonin (5-HT) which increases during attacks.
Answer: HSV-1 is the virus that causes cold sores around the mouth. It can cause genital herpes when it spreads through oral sex. But most of the time, genital herpes is caused by HSV-2.