You just need a quick scroll on social media to feel like the world is a troubling place right now. While we’ve all heard of triggers — those moments that catch you by surprise and send your body into fight or flight mode — you are less likely to know about triggers’ siblings: glimmers. The term was coined by Deb Dana, a licensed clinical social worker who specializes in complex trauma, in her 2018 book “The Polyvagal Theory in Therapy,” in which she identified the small micro moments of joy that lead our bodies to experience feelings of connection, calm, and joy. While the word conjures up images of faint,…