Love defined as the connection two or more people establish by a shared positive emotion, has a myriad of health benefits. This feeling increases the vagal tone, the difference between heart beats during exhalation and inhalation. The higher the vagal tone the bigger the improvement in immune and cardiovascular health, glucose regulation and social skills.
There is a kind of meditation called loving/kindness, oriented at generating feelings of warmth, friendship and affection towards ourselves and other people. This type of meditation, increases the vagal tone, and has wonderful emotional and physical effects.