Bikram yoga is a 90 minute hatha yoga series consisting of 26 postures (asanas) and 2 breathing exercises performed in a heated room (approximately 40°C).
It is designed to systematically move fresh oxygenated blood to every cell in the entire body, as well as move the spine in a way that improves the health of the nervous system. By improving the health of the nervous system every system of the body will function better.
Every asana is performed in the same order each time to the best of your ability.
You can learn to steadily make new demands of yourself each class you take; to work harder, deeper, yet calmer. Apply yourself whole-heartedly but in a relaxed manner and you will get the most benefits. You will learn how to breathe in a very relaxed manner, even though your heart may be racing and your body is hot and sweaty.
You will gain peace of mind and the ability to stay focused under many different circumstances. The more you practice the greater the rewards. The best way to find out about the yoga is to try it for yourself.