Or another example: Apart from several types of exercise which don't exacerbate if I keep to 3', I've done about 5 types of exercise which did. Then I paced them, went down to 20 secs. or even 10 secs. and then up from there, and that does the trick. Depending. Just the question what's then worth it. Qi Gong for 20'' doesn't do much for me, but doing Qi Gong arm exercises lying down showed me that putting arms up for a minute is a great help for the arm Ache. And you have to learn to listen closely to your body reactions. Or doing stretching class for one hour with people 10-20 years older than me made me nauseous, ripped/cramped me up, and the immediate Ache made me cry - doing a third of what they were doing, long breaks in between, was fairly helpful, so I do these for myself (for neck, shoulders etc.) in 5x1 minute stints.
