If you feel like your energy is lower than it used to be, it takes longer for you to bounce back from workouts or stress, or you just arent as mentally sharp as you were 10 years ago, it could be that your cells are accumulating damage more quickly than your body can repair it and get rid of it
Nakamura, H

human sst 5 TMD4 and sst 5 TMD5) (Duran-Prado et al., In line with the mapping of the ligand, the sst receptors are widely expressed in the rodent brain with the following regional pattern: all layers of the cerebral cortex (sst 1 , sst 2a/b , sst 3 , sst 4 ), bed nucleus of the stria terminalis (sst 1 , sst 2a, b , sst 4 ), hippocampus (sst 1 , sst 2a, b , sst 3 , sst 4 ), basolateral amygdaloid nucleus (sst 1 , sst 2a/b , sst 3 , sst 4 ), medial amygdaloid nucleus (sst 1 , sst 2 , sst 3 ), ventromedial hypothalamic nucleus (sst 1 , sst 2 , sst 3 ), dorsomedial hypothalamic nucleus (sst 1 , sst 3 ), paraventricular nucleus (sst 2a , sst 3 ) and arcuate nucleus of the hypothalamus (sst 1 , sst 2a , sst 3 , sst 4 ), substantia nigra (sst 1 , sst 2a/b , sst 3 ), dorsal raphe nucleus (sst 1 , sst 2 , sst 3 ), locus coeruleus (sst 2 , sst 3 ), granular layer of the cerebellum (sst 1 , sst 2b , sst 3 , sst 4 , sst 5 ), dorsal motor nucleus of the vagus nerve (sst 2a, b , sst 4 , sst 5 ) and nucleus of the solitary tract (sst 1 , sst 2 , sst 3 ) (Schindler and Humphrey, 1999

The relative gene expression was calculated using the 2 CT method by Ribosomal protein L13a ( RPL13 ) gene, and the fold change was expressed by 2 CT