Well this is rather interesting. Explains why so many "Karens" and those who are easily enraged by politics appear to be out of shape.

"Individuals with a V̇O2max below average (BA) had a 775% greater risk for changing their classification from intermediate to high anxiety levels compared to above average (AA) individuals"

Another reason why taking care of yourself physically is so important.

https://www.sciencedirect.com/science/article/pii/S000169182600171X