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Lesson 6 of 7 6 min read 17 min listen

Brain Aging

The brain ages last if you use it well — and first if you don't.

Cognitive reserveNoveltySocial
Key takeaways

What to hold onto

  • 1

    The most influential conversation you'll ever have is the one happening inside your own mind.

  • 2

    Jared Leon explores the fascinating role of your inner voice—the constant internal dialogue that shapes your thoughts, emotions, decisions, and ultimately, the direction of your life.

  • 3

    Whether it's encouraging you to move forward or holding you back through fear and self-doubt, your inner voice has a profound impact on how you experience the world.

  • 4

    Leon explains that this internal dialogue isn't random.

Clinical Pearl from Dr. Leon
Because the voice you listen to the most is your own—and learning to lead that conversation may be one of the most powerful changes you ever make.
— Dr. Jared Leon
Action steps

Practice this week

  • Learn one new thing this week that requires focus.

  • A language, an instrument, a skill. Novelty is fuel.

© 2026 Functional Living · Dr. Jared Leon