Are there supplements I can take to reduce severity of aging?

Anti-aging. Some studies have been done on coq10, ta-65 (telomerase activation), but results vary.
Aging -Supplements. Yes. Along with a healty life style adding good supplements of vitamins and minerals can be very helpful. The safest are vitamins derived from real food. Take enough vitamin d3 to keep your blood levels at an optimum of around 60. Avoid iron supplements which can be harmful.