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The Best Time to Exercise: Morning vs Evening Workouts - What the Science Says

Written by:
Behavioral Science Team
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The Great Workout Timing Debate: Is There a Perfect Hour for Exercise?

Cracking the code on the best time to exercise can feel like trying to solve a personal Rubik's Cube. With morning enthusiasts championing dawn workouts and night owls praising evening sessions, it's natural to wonder: is there a science-backed sweet spot for optimizing your fitness routine?

Let's dive into what research reveals about the ideal time to lace up those sneakers or hit the weights.

The Science Behind Workout Timing

Recent studies have shed light on how exercise timing can impact your performance and results:

  • A pivotal study in the Journal of Applied Physiology suggests late afternoon and early evening might be prime time for peak performance [1].
  • This timing coincides with the peak of core body temperature, potentially enhancing athletic capability.

Morning Workouts: The Early Bird Advantage

Morning exercise comes with its own set of benefits:

  • Greater exercise adherence
  • Enhanced weight management
  • Kickstarts metabolism for all-day fat burning

A recent review focused on individuals with overweight or obesity highlighted these advantages of morning workouts [2].

Benefits of Morning Exercise:

  1. Increased likelihood of sticking to your routine
  2. Potential for greater fat burning throughout the day
  3. Fewer distractions or schedule conflicts

Evening Workouts: The Power Hour

If strength and power gains are your goals, evening workouts might have an edge:

  • Higher core body temperature improves muscle function
  • Enhanced enzyme activity boosts endurance
  • Potentially lower risk of injury due to improved body conditions

The Chronotype Factor: Listening to Your Body Clock

Your personal circadian rhythm plays a crucial role in determining your ideal workout time:

  • Some people are natural "morning larks"
  • Others are inherent "night owls"

A study in JCI Insight found that aligning workouts with your chronotype can improve performance and enjoyment [3].

Finding Your Perfect Workout Time: Practical Strategies

Here are four ways to determine the best exercise time for you:

  1. Experiment: Try workouts at different times to identify when you feel strongest and most energized.
  2. Prioritize Consistency: Regular exercise is more important than the specific time of day.
  3. Align With Your Goals: Consider morning for fat loss and habit formation, evening for strength and peak performance.
  4. Listen to Your Body: Pay attention to how your body responds to different workout times and adjust accordingly.

Conclusion: The Best Time to Exercise Is Personal

While science suggests late afternoons or early evenings might offer a physiological edge for peak performance, morning workouts boast benefits for habit formation and metabolic boost. Ultimately, the best time to exercise is when you can consistently fit it into your schedule and when it aligns with your fitness goals.

Whether you're a dawn warrior or a twilight trainer, the key is finding your rhythm and sticking to it. Your perfect workout time is out there – it's time to discover it and watch your fitness journey unfold.

Ready to find your ideal exercise time? Start experimenting today and track your results!

Scientific References:

Circadian Variation in Swim Performance - Journal of Applied Physiology
Advantages of Morning Workouts
- Exercise and Sport Sciences Reviews
Aligning Workouts with Chronotype
- JCI Insight

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