The Proven Magic of Being Outdoors & The Curious History of A, B, C

Many ballpoint pens have a particular design feature intended to save your life – if necessary. It's one of those clever features most people never notice and hopefully never have to use yet millions of pens contain it. https://www.iflscience.com/theres-a-surprising-reason-why-pen-caps-have-holes-in-them-47723/ Most of us instinctively know that spending time outdoors feels good. A walk in the park, sitting on a patio, hiking a trail, or simply being outside seems to improve our mood. But scientists are discovering that the benefits go much deeper than just "feeling better." Modern humans spend the vast majority of their lives in...