As you enjoy practicing Tai Chi & Qigong it is actually a Play Out rather than a workout! We associate Work as something we have to do to earn a living! But exercising is helping you to live and enjoy life. So play out and play in, as you do your Tai Chi..
If you have worked hard and been busy all day, then ensure you practice Tai Chi with with a feeling good playful mind set!
Your feeling good attitude and playfully enjoyment focus will tune yourself to improved all round fitness. Happy Chi, Tony Stewart.