Influences sexuality the most.!
The most active and most important sexual organ of the body isn’t a penis or vagina. It’s the brain and its structures.
The brain is responsible for our emotions, our perceptions, our memories for regulating and controlling our central nervous system, our cardiovascular system, our endocrine system and our senses. The hypothalamus of the brain is responsible for the secretion of hormones that influence sexual feelings and response, like oxytocin, vasopressin, serotonin and dopamine.
The brain receives and processes messages from your sensory organs, giving you and other parts of your body information about how something looks, sounds, tastes, smells and feels to you. It's also the brain that sends and receives signals regarding blood pressure, heart rate, body temperature and how we breathe: all huge parts of sexual function, experience and response.