MMA guy's question on Qi Gong material

[MA fanatic]

Hi guys.
I'm not a Qi Gong practitioner, but had been reading
about it for many years. Recently I met a woman who was diagnosed with MS 10 years ago. Her illness progressed quickly until she joined something called Iron Chi Kung (I may be confusing the name) class. Now, 3 years later, she is symptom free. That amazes me. I also keep reading adds in black belt magazine about some Sil Lum course from Indonesia which promisses physical results in as little as 2 weeks. Is all this possible? If so, I would love to obtain some video or literary training aids. Which are the best videos and/or books to start with? What will give me fastests results. (Forgive me if I'm thinking like a MMA-er. I have been practicing external arts for years, and never really explored the internal martial arts for health and healing, so may come across as ignorant in that area.) Thanks.
MA fanatic