This is helpful if you know anyone receiving chemotherapy. This is from a study (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4278135/) that reported a difference between a group of women receiving chemo treatment for breast cancer - one doing pranayama and the other not. The main difference was in energy levels and positive affect. They felt less fatigue, better moods, more energy, less nausea. I believe as well - in increased healing. x Enjoy