of momentum among the anti-aging researchers and one guy who is the head of the aging institute at albert einstein. >> reporter: can we say that if you are taking metformin, can you delay aging process? >> yes, because it is the human decline, so you take care of the immune decline, and you will do much better, so met formin has one of the hallmarks of preventing aging. >> and metformin is approved for diabetes but not anti-aging, because of the ways that we measure it, inflammation and immunity, and that is how it is targeted and this is why people in that world are taking the medications like that, and the science is going to take a while to nail down, but it is fascinating. >> and what about standing up? because they took away our chairs? >> yes. and sitting is a big killer. they say that sitting is the new smoking, and it is not a cute adage, but it is true. >> and so we are standing here, and we are trying all of this stuff, and i won't mention names, but he is trying it all, and he says that he is feel like a 6-year-old, and he is 50. thank you, dr. gupta. appreciate it. >>> and now, team us