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44

You Track Your Sleep and Steps. Why Not Your Mind? | 6 Signals of Mental Fitness

June 30, 2026
36 min

Dave and Luke share six observable signals of mental fitness and a five-question weekly check-in, drawing on neuroscience and positive psychology to show how to actually tell whether your mental fitness is improving.

Show Notes & Chapters

You track your sleep, your steps, and your workouts. So how do you know if your mind is actually getting stronger? Dave and Luke take on one of the most overlooked questions in the space: how to tell whether your mental fitness is improving.

Drawing on neuroscience and positive psychology, they make the case that mental fitness is trainable and measurable long before a crisis hits. They walk through six observable signals that show up in everyday life, then introduce a five-question weekly check-in built to reveal patterns over time instead of judging a single good or bad day.

Chapters

  • 00:00 Measuring Mental Health. Why, unlike physical health, most people have no framework for knowing if their mental fitness is improving.
  • 01:14 What the Research Says. Three key findings that build a science-backed definition of mental fitness.
  • 06:09 Where Your Mind Lives. The Harvard Killingsworth and Gilbert study on mind-wandering, and why presence is a measurable signal.
  • 10:49 Mental Fitness in Real Life. What each of the six signals looks like day to day.
  • 22:02 The Five-Question Weekly Check-In. A practical end-of-week tool to measure mental fitness.

Links and Resources