There are many rare courses out there and you never know what you might find on a trip back through the history of physical culture. Here’s an unusual one from Professor Anthony Barker: “Head-Standing For Perfect Health.” Written in 1922, it may seem a little counter-intuitive, but standing on your head does indeed have many health benefits. Maintaining an upside-down position increases blood flow to the brain, which is always a good thing, and it also allows the spine to decompress. Give it a try.