Ashtanga Yoga (you can also occasionally see its alternate spelling, Astanga Yoga) is a system of yoga that is commonly attributed to Sri K. Pattabhi Jois.
Simple statistics shows that women are tended to live longer than men and one of the secret may lie in a female physiology. It looks like the answer can be found in the blood iron level.
The meditation, which we know today as Inner Smile, is based on concentrating on positive emotions and moving this sensation across the body keeping control over the process.