Harvard University has been conducting a study on happiness for 80 years. Its third director, the psychiatrist Robert Waldinger, has concluded that neither childhood nor the natural disposition nor the neighborhood in which you grew up marks the destiny.
He says that loneliness hurts and that "living surrounded by loving relationships protects our body and mind" Waldinger cannot answer the question of whether today's society makes us happier, since he details that there are many variables, such as screens and economic well-being. He also says loneliness is very dangerous physically because it causes the diseases of old age to develop earlier.