Relationships matter as much in adulthood as they do in childhood. Isolation is never healthy for human beings. Your friendship circle helps in coping with the ordinary pressures of life, and the science now suggests that your social support network even guards against the risk of dementia. But it isn’t just in terms of the present or the future that connection features in the adult research literature. One of the fascinating insights we have gained relates to the degree to which childhood patterns of emotional security and anxiety are repeated in adulthood. Attachment has a lifelong impact because, at its core, it is based not in learning processes, but in biology. Understanding how attachment styles function can go a long way toward helping people negotiate the tricky waters of romantic intimacy. Most of the public have little idea there is a science that charts the links of these two life phases, so they continue to struggle unknowingly and unnecessarily with emotional challenges. That is why we think everyone deserves to know about the science of connection. It helps us live lives of greater ease and compassion.