Too many of us (here in the United States, anyway) rely on external energy conversion to do what we humans once did with our stored chemical energy. Using a drug to treat the symptoms of that technology-enabled behavioral dis-ease feels wrongheaded. A huge step in a healthier direction involves moving around the world predominantly under our own power or equivalent (a nod to those with mobility disabilities, and equitable access to resources), and by "equivalent to walking or cycling" I'm not suggesting multi-ton automobiles, but electric-assist or electric-powered bicyles, tricycles, and wheelchairs.