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Long walks and Ritalin can trigger PEM so I would be careful with those, for anyone reading

What’s PEM?

PEM is post-exertional malaise, the hallmark symptom of mecfs and some portion of what we call long covid. It's brutal, trying to push through it can lead to permanent worsening of symptom severity.

While my wife would love nothing more than long walks, her long covid still stops her from exercising - before covid she was down the gym 5 days a week and loves being outdoors.

There can be mitochondrial damage in some LC patients which will stop them being able to release energy the way they used to. https://www.news-medical.net/news/20240104/Study-identifies-...

Most experts on chronic fatigue syndrome (CFS) would advise most CFS sufferers to avoid stimulants because they tend to make the fatigue worse (once the stimulant effects wear off).

And that has been my experience.