It's difficult to put forward the science behind Kundalini Yoga / meditation to audience stuck in modern scientific mindset. There's a huge literature in India for holistic living that encompasses from Ayurveda, yoga to tantra written over thousands of years based on direct experience and experiments. If you’re curious to know more you can start with The Wellness Sense https://www.amazon.com/Wellness-Sense-practical-emotional-Ay...

Good advice from Thomas but I think any disease especially like cancer should be taken as indication to stop for a moment and reflect on our lifestyle. Remember we need to reflect, transform but not to worry about the disease, job and other stuff. I strongly recommend that curious readers must read [0] – a book on practical wisdom to live a healthy life with virtually no disease. The knowledge elucidated is not random by any stretch but back by science of ages and wisdom of Rishis. Only if you humble enough to open yourself and dare to explore dimensions you never thought existed.

0] http://www.amazon.com/The-Wellness-Sense-practical-emotional...