At the same time, the number of senescent cells, associated with damage or stress that secretes proinflammatory factors (SASP or senescence-associated secretory phenotype), increases with age in many key tissues, including the kidneys, lungs, blood vessels, and brain SAM may not get the same level of media attention as NAD+, but that doesnt stop it from being less useful: S-adenosylmethionine, or SAM, has been used for several years in the treatment of hepatic conditions and osteoarthritis and more recently in the treatment of clinical depression
Adults need around 2.4 micrograms (mcg) of vitamin B12 a day, and women who are pregnant or breastfeeding need more
These powerful shots bypass the digestive system for immediate absorption, directly supporting nerve function and red blood cell production
As we age, stomach acid production can decline (atrophic gastritis), which makes it harder to extract B12 from food or pills