Quantas In Flight Magazine Feb 06 reviews The Five Tibetans book "T5T The Five Tibetan Exercise Rites (Penguin)
In the 1930's, Colonel Bradford (ex- British Army) stumbled upon a monastery in Tibet brimming with ancient, yet far from decrepit monks, who attributed their youthfulness to five yoga postures performed daily.

Here that efficacious monky business is outlined for your benefit, although techniques are modernised somewhat by focusing on muscle groups and drawing on Pilates, Feldenkrais and other disciplines.