Is There Any Kind of Biochemical Changes That Happen When We Have Physical Touch?

There are a cascade of positive changes that happen in the body when we have physical touch. Even if you hug a pet for 20 seconds, it'sitt has a really good effect on the body. It can lower your blood pressure even to be in hug. There is something happening when people have sex that actually feels good in their bodies and is promoting this bonding with their partner. And there's even a line of research that shows that a hug can make you more resilient against illness.