Medical research on aging aims to understand the biological processes of aging, develop interventions to slow down or reverse aging, and improve the quality of life for older adults.

Evolutionary theory is not a common biological theory of aging. The free radical theory, telomere shortening theory, and mitochondrial dysfunction theory are all widely accepted theories that attempt to explain the biological processes of aging.

Anti-aging is the term used to describe the process of slowing down or reversing the effects of aging.

Regular exercise, a healthy diet, and adequate sleep have all been shown to promote healthy aging.

Ligase is the enzyme that is involved in the repair of DNA damage.

Immune system dysfunction is not a potential therapeutic target for anti-aging interventions.

Gerontology is the term for the study of aging.

Increased risk of chronic diseases is not a potential benefit of healthy aging.

Senescence is the term for the process by which cells lose their ability to divide.

Hormone replacement therapy is not a potential intervention for promoting healthy aging.

Maximum lifespan is the term for the maximum lifespan that an organism can achieve.

Body mass index is not a potential biomarker of aging.

Social gerontology, psychological gerontology, and economic gerontology are all subfields of gerontology that study the social, psychological, and economic aspects of aging.

Ethical concerns are not a potential challenge in the development of anti-aging interventions.

Apoptosis is the term for the process by which cells self-destruct.