I mostly enjoy Ted Talks on YouTube despite there being a few flakes in the mix. One I came across relevant to cycling ihttps://www.youtube.com/watch?v=KTT7i3SKpMQs a strong message advocating cycling. I like the video as I've seen the difference cucling has make to my nephew, who has taken up cycling and seen his weight go from 220 lbs. to 185lbs., his high school weight. Also my niece and her daughter of 8 yrs. old are now riding bikes. So perhaps a friend or family member could benefit from seeing the video.