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The original was posted on /r/cfs by /u/wood_dweller on 2024-08-09 23:20:36+00:00.

This souds really stupid but here is what happened:

I was recently searching for an e-bike. This week I finally found a nice Tern folding bike with a Bosch transmission in a reasonable price. I didn’t think long and contacted the seller.

I went for a test ride. It worked really well. Power kicks in super quick, so I’m assisted instantly. I made nearly 20 km on a Turbo mode - I didn’t have to pedal a lot. It’s less intense than walking and I’m also seated.

Than in the evening I felt tired but not in a usual CFS way. I thought I will either feel much better or I will get PEM again.

Next day I noticed that my baseline drastically improved after last horrible week long PEM. Before that I was struggling with walking and staying. Now after two rides I do not get exhausted during the day. Recently I was Moderate and heading toward Severe territory, now I’m feeling Mild again.

My theory is pedaling caused better blood circulation without exceeding a certain intensity threshold. Laying down all day is good but makes body more lethargic - this creates a loop.