As you know, I am a bicycle rider. I love to be on my bike for so many reasons. (ie: stress relief, healthy exercise, being outside, etc.) I also enjoy the friends I have made while riding in organized events and helping raising money for things I support.
Recently, I've had listeners and other friends ask me about how to start riding a bike as an adult. What they need to buy, what type of bike to choose, where to ride. All great questions that I answer the same way... just get on a bike and ride somewhere. That is how I started. I just got on a bike that had been hanging in my garage and rode around the neighborhood and in parks. Next thing I knew, I was hooked.
Here's an article from Bicycling Magazine that might help you get started riding.