By Deborah Bailey Staying youthful, mentally alert, and free of life threatening illnesses is something that interests almost everybody. There always seems to be new ideas and trends that make them intriguing enough for those with the means to spend money and endure some discomfort to see if they are effective. The cryotherapy Sherman Oaks CA health farms promote is an example. There seem to be promising benefits to the treatments, but the research is still in the early stages. Most people have...