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Over the years, clinicians started to test beyond longevity, noting a possible role in reproductive aging and stress-related reproductive dysfunction

Diet Some people can develop a vitamin B12 deficiency as a result of not getting enough vitamin B12 from their diet

All blood samples were obtained after donor informed consent and approval by the Ethics Committee of the University of Science and Technology of China

Because your body can store B12 for several years, serious B12 deficiency is rare, but up to 26 percent of the population may have a mild deficiency

Theyre excellent for prevention, early aging signs, and enhancing surgical results, but severe skin laxity may still require surgical intervention