Younger brains
A more recent study in South Korea in 2015 made an even more incredible discovery. Researchers found that people who feel younger actually have the structural characteristics of a younger brain. The study participants, who had an average age of 71, underwent brain scans and psychosocial surveys. The brain scans showed that seniors who said they felt younger than their chronological age had more grey matter in the parts of the brain that usually shrink as you age and your health declines.
Furthermore, the people who felt younger scored higher on memory tests, were less likely to report depressive symptoms and considered their health to be better. While these findings do not completely prove that simpling feeling young means your brain is physically younger, this research is consistent with a growing body of research suggesting that brain health plays a big role in how we feel, including whether we feel our actual age.