A study by Yannick Stephan, Angelina R. Sutin, and Antonio Terracciano at University of Montpellier and in conjunction with Florida State University (reference below) proves that the majority of people in the US feel younger than they really are, and this mindset has benefitted them physically.
In the study, they found that “Feeling younger than one’s chronological age predicts greater well-being, better perceived health and better physical and cognitive functioning“. On the flip side, “feeling older than one’s chronological age is a risk factor for mortality”. So, while no one can escape aging completely, mindset can influence how fast your body gives in to it. I don’t know about you, but I’m hanging on to my 20’s as long as possible!