Research from Queen Mary University of London indicates that caffeine may activate an ancient cellular energy system linked to growth, stress resistance, and DNA repair—processes closely associated with aging. The study, published in Microbial Cell, utilized fission yeast, a single-celled organism with significant biological similarities to human cells, to investigate caffeine’s cellular effects. The findings suggest that caffeine influences the AMP-activated protein kinase (AMPK) pathway, a conserved energy sensor that helps cells manage low-energy states, rather than directly affecting the Target of Rapamycin (TOR) growth regulator as previously thought.
The researchers highlight that AMPK’s role in maintaining metabolic balance and its presence in both yeast and humans make it a crucial target for aging and disease studies. Caffeine’s activation of AMPK may impact cellular processes such as growth, stress responses, and DNA repair, the latter being particularly relevant due to the accumulation of genetic damage over time. While the study underscores potential health benefits of caffeine, it also notes that the experiments were conducted in fission yeast, and thus, direct implications for human longevity remain speculative. Read more here.