Feeling Younger Could Be a Sign of a Healthier Brain

Can the power of belief change the physical age of your brain? In other words, if you feel younger than the age listed on your driver's license, does it affect the brain's structure to reflect that of a younger person?

This is called "subjective age" which is basically your gut's sense of your own age. A study looked at 68 healthy older South Korean adults with an average age of about 71. The researchers asked how old the participants felt compared to their actual age.

Each participant then got a brain MRI scan which looked at gray matter volume in specific brain regions. Using machine learning, they estimated how old each person's brain looked structurally, regardless of their actual age.

People who felt younger than their age had larger gray matter volume in specific regions, notably the inferior frontal gyrus and superior temporal gyrus. These are areas tied to self-awareness, body perception, and cognitive control.

In addition, people who felt younger also had a younger predicted "brain age" than those who felt the same or older as their real age. This held true even after accounting for depression, self-rated health, cognitive test scores, and personality. So you couldn't score higher just because you're objectively healthier.

While you can't go out and try to fake your way into a younger brain, it does show that mindset and perception play a real role in brain aging. Your subjective sense of age isn't just a throwaway feeling; it appears to be tangled up with real, measurable biology. Until larger, longer-term studies can untangle cause from effect, the safest conclusion is this: how old you feel may be one of the more honest signals your brain sends about how it's actually doing.

Copyright 2026 The Arena Group, Inc. All Rights Reserved

This story was originally published June 26, 2026 at 4:41 PM.