00:00As we unravel the threads of this complex feeling, we may find that love in its deepest sense is as much a question as it is an answer.
00:10The Biology of Love
00:12Nature's design or human instinct, when we first ask, why do we love?
00:18One of the immediate answers comes from biology.
00:22Science tells us that love in its most basic form is rooted in our evolutionary history.
00:27Love, it seems, has a purpose in ensuring the survival of the species, the affection we feel toward a partner, the bond between parent and child, and even the camaraderie among friends, all of these emotions are biological underpinnings.
00:43Scientists have identified chemicals such as oxytocin, dopamine, and serotonin as key players in the feelings associated with love.
