Yes, it is possible to delay aging. Few human studies support the same hypothesis that dietary antioxidant supplementation could be beneficial in delaying the aging process. Vitamin E can extend the life expectancy of men by 2 years if they have a higher than average dietary intake of vitamin C and smoke less than one pack of cigarettes a day. A higher intake of green and yellow vegetables was significantly associated with a decrease in skin aging, measured as the extent of facial wrinkles in the crow's feet area.
Treating aging would allow for much more effective and better treatments to prevent, delay, or even reverse aging-related diseases. An example is the TAME (Targeting Aging with Metformin) trial, which aims to find out if the antidiabetic drug metformin can delay aging and reduce the risk of many aging-related diseases at the same time (R). For example, the immune system rejects stem cells (this is the case of “allogeneic stem cells that come from other people”) or they are already aged and damaged (this is the case of autologous stem cells, which come from your own aging body). Various biotechnology companies and research groups are trying to identify rejuvenating substances in young blood, with the aim of administering them to humans to improve health and delay or even partially reverse aging (R).
