The hugs and cuddles, it is nice to give and receive. And for good reason, they stimulate and trigger a range of mechanisms including hormone in our body. Result: they bring us relaxation, relaxation and self-esteem. But that's not all! Caresses, and more generally the physical love and tenderness, can have a much more impressive still. They may act at the heart of our cells and our carrément genetic influence, as evidenced by very serious Canadian Studies. Thus, the fact of being and have been fondled or less would have a direct impact on our resistance to stress, for example.