Exercise balls were certainly not invented by Joseph Pilates and they are not considered traditional Pilates equipment in the way that magic circles and reformers are.
Pilates, Five Invigorating Exercises Using A Balance Ball. Follow these five invigorating Pilates exercises using a balance ball to make you feel refreshed and revived.
I think chronic stress is a major factor in autoimmune disorders. I've seen eliminate major stressors from their lives and have drastic improvements in their health.
My friend with celiac ate mainly processed foods, which I think are the cause of many health issues.