There's nothing natural about a downward spiral in your mid-30s. I mean there will be some gradual deterioration but biologically a significant downward spiral doesn't have to hit until your 70s. There are plenty of masters athletes still turning in great performances at advanced ages. And they aren't genetic outliers; mostly they are just persistent and consistent.
Before blaming unlikely exotic causes like "long COVID" I would suggest fully optimizing the basics: sleep hygiene, body composition, nutrition, exercise, sun exposure, alcohol, etc. If you fix all that stuff and still feel worse than you did in 2019 then there may be something else going on.
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There's nothing natural about a downward spiral in your mid-30s. I mean there will be some gradual deterioration but biologically a significant downward spiral doesn't have to hit until your 70s. There are plenty of masters athletes still turning in great performances at advanced ages. And they aren't genetic outliers; mostly they are just persistent and consistent.
Before blaming unlikely exotic causes like "long COVID" I would suggest fully optimizing the basics: sleep hygiene, body composition, nutrition, exercise, sun exposure, alcohol, etc. If you fix all that stuff and still feel worse than you did in 2019 then there may be something else going on.
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