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Are stress resistance and longevity really linked in normal living conditions?
1Laboratoire d'Ethologie et de Cognition Animale, FRE CNRS 2382, Université Paul-Sabatier, Toulouse, France.
Background:
The existence of a positive relationship between stress resistance and longevity is often accepted, but this conclusion mainly stems from studies putting animals in adverse conditions such as food restriction.
Objective:
It is argued that a positive correlation between stress resistance and longevity has not been clearly observed at the individual level in animals or humans living in nonstressful conditions. Experiments should verify this point.
Conclusions:
If experiments would fail to show this correlation, there would be no ground for the proposal that treatments stimulating stress resistance could increase longevity and health.