Millions of people own bicycles, and just about everyone who has one knows how to pedal it around the block. But surprisingly few people take full advantage of all that riding has to offer. For those who haven’t yet tapped into cycling’s benefits, the list is long: It burns calories at a steady clip, helps reduce the risk of diabetes and heart disease, improves your memory and brainpower, and makes for deeper and more recharging sleep. It’s gentle on the joints. And maybe most important of all, riding is fun.