Mixed
Mitochondrial dysfunction and the resulting accumulation of reactive oxygen species (ROS) are primary drivers of aging and age-related diseases, creating a vicious cycle of oxidative damage to mitochondrial DNA (mtDNA) and cellular energy depletion.
Aging is closely linked to mitochondrial health and oxidative stress. While you cannot stop ROS entirely (they are necessary for signaling), maintaining mitochondrial function through regular physical activity and a balanced diet is the most evidence-supported approach to mitigating age-related decline. Be skeptical of antioxidant supplements claiming to reverse aging, as clinical evidence for lifespan extension in humans is lacking.
The mitochondrial theory of aging... proposes that oxidative damage generated during oxidative phosphorylation of mitochondrial macromolecules such as mtDNA, proteins, or lipids is responsible for aging... oxidative damage-induced mtDNA mutations that impair either the assembly or the function of the respiratory chain will in turn trigger further accumulation of ROS, which results in a vicious cycle leading to energy depletion in the cell and ultimately cell death.
Why this rating
Based on a comprehensive review of genetic models, animal studies, and human tissue analysis.
Source
Oxidative Stress, Mitochondrial Dysfunction, and Aging
Hang Cui et al. · Journal of Signal Transduction · 2011
DOI 10.1155/2012/646354
Related findings · Mixed
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