The use of logos in the essay, “This Is Your Brain On Love” by Danielle Groen demonstrates how the biochemical reactions that occur in the women’s brain when in love allows them to make unconscious biological decisions. Helen Fisher, an anthropologist, observed the reproductive drives that occur in female brains. She discovered that, “it was only women who demonstrated activity in regions of the brain associated with the retrieval of memories. It's no easy task to raise a kid so it’s important to remember… “whether [your mate] can hit the buffalo on the head and share the meat with you.””…