Keeping your blood pressure under control can mean adding things to your life, like exercise, that help lower it. But, you may not realize that it also means avoiding things that raise your pressure. A healthy blood pressure level means you're less likely to have a heart attack or stroke.
read more at: http://medicalxpress.com/news/2016-02-blood-pressure.html
My take is:
- Get/Stay thin, and you do not have to worry about salt nearly as much.
- Treadle wheels are much better than e-spinners. Long draw is healthier than inch worm. Great wheels are even healthier. An hour of spinning very fast (on a double treadle wheel) is healthier than 4 hours of gentle, slow spinning.
- Use a knitting sheath so effort is transferred to the upper arm and shoulder when knitting - then knit like a demon to keep the blood flowing.
I still do not like great wheels for my own spinning!