Pain Reduction
Yoga can provide therapeutic relief from many ailments, such as back pain, arthritis, migraine headaches and menstrual cramps. Many yoga poses can also release tension and soreness in your muscles. Practicing yoga can even help you prevent illness and injury by improving your immune system and teaching you to treat your body well. As a result,yoga can serve as preventative therapy to help you not only improve, but also maintain your health.
Improved Circulation
Many yoga poses help to improve the circulation of blood throughout your body. Improved blood circulation helps flush out toxins and impurities from your body. Regular practice of yoga can also help lower your blood pressure and pulse rate.
Improved Strength and Flexibility
One of the most noticeable effects of yoga is that it can make your body strong and flexible, while improving the range of motion in your joints. The practice of yoga can also improve your balance, tone your muscles and increase your stamina. Some yoga poses can also help you build strong bones, which helps to prevent osteoporosis.

Yes you are absolutely right. I am completely agreed with your all points. Yoga becomes part of your physical life. Your body grows stronger, more toned, and more flexible as you move from one asana-or pose-to the other.