They're not, but they really help. https://www.psychologytoday.com/us/blog/the-social-self/201107/friends-benefits-pets-make-us-happier-healthier https://www.p

They're not, but they really help. https://www.psychologytoday.com/us/blog/the-social-self/201107/friends-benefits-pets-make-us-happier-healthier https://www.psychologytoday.com/us/blog/the-social-self/2011...