Chances are, no one has ever regretted working out — exercise always leaves us feeling better. But getting yourself to the gym? That part can be tricky to remember.
If you find it hard to get motivated and struggle to get yourself to the gym, psychologists say the “peak-end rule” can help shape your memories, making workouts more enjoyable and making it easier to start next time.
What Is the “Peak-End Rule” Exactly?
The “peak-end rule” means our memories of an experience aren’t shaped by every moment, but mostly by the most intense part (peak) and how it ends (end). This idea, developed by Barbara Fredrickson and Daniel Kahneman in the 1990s, shows that the highlights and final moments leave the strongest impression, while the dull middle parts fade into the background.
Our brains naturally focus on these moments, often overlooking the long, less exciting middle sections.
How Does This Help with Workouts?
The theory says you don’t need to enjoy every second of your workout.
Just plan for an emotionally powerful highlight (a “peak”) and make sure your workout ends on a positive note. This way, your memory of the session becomes a highlight reel, while the boring parts fade away.
A recent 2025 randomized controlled study confirmed this effect. Researchers tracked four factors: anticipation before exercise (anticipated affect), enjoyment during (enjoyment), memory of the experience (remembered affect), and how often participants worked out afterward (follow-up frequency). Those who had a positive peak moment and a satisfying finish formed motivating memories that boosted their workout frequency the following week.
Why Does This Matter to You?
When your workout memories are positive and complete, you’re more likely to want to do it again. That makes it easier to stick with your routine—especially if you’re just starting a lifestyle change.
Remember, you don’t have to love every moment of your workout. Yes, you’re doing something amazing for your body, but the process can still feel tiring or boring. It’s enough to have one great moment and a positive finish. This could be an energizing song, a memorable achievement, a kind thought you tell yourself at the end, or even a tasty protein shake as a reward! Whatever makes those peak and end moments joyful works.
The “peak-end rule” is simple but powerful—it shows you how to design workouts where not every minute has to be perfect, just the highlights and the finish. This approach not only makes your experience better but keeps your motivation alive, turning exercise into a new favorite habit.
