This sounds like one of those sciency bullshit articles where
a) the study was on a subcategory of proteins that in some very boring and specific cases influence the aging of a certain type of cell in a minor way
b) the study was a miniscule pilot study with 10 participants
c) it explicitly said that it's results are more than shaky and need further testing to prove anything
d) it didn't mention humans aging at all
e) the participants were some kind of worm
but some journalist read half the excerpt, misunderstood it completely and did a catchy article about what he hallucinated into the study.