> "We're showing that older individuals' state of mind is linked to the biology of their brain mitochondria, which is the first time that subjective psychosocia

> "We're showing that older individuals' state of mind is linked to the biology of their brain mitochondria, which is the first time that subjective psychosocial experiences have been related to brain biology," > Though the current study cannot determine if the participant's psychosocial experiences altered their brain mitochondria or if innate or acquired mitochondrial states contributed to those experiences, other studies suggest that the relationship between mitochondria and mood works both ways. It seems as though they've established a "link" between subjective experience and objective biology, but still consider these two separate things in a causal relationship. For some reason that seems wonky to me, and it makes more sense to think of mood and biology as the same thing viewed from the subjective and objective perspective, respectively. In that sense there is no relationship, as there isn't independence, and then there's no weird/hard question of subjective/objective causality.