Trial & Error & Error Podcast

53. Fitness & Menstruation: Is there any truth behind cycle syncing?

Listen Later

Ever wondered why your body can feel like a high-performing athlete one week and a mildly haunted potato the next? 🏋️‍♀️🥔👻 This week on Trial & Error & Error, we’re talking periods, hormones, and the internet’s favorite wellness buzzword: cycle syncing. 🩸🧠✨

We break down the menstrual cycle (without the high school trauma), how hormonal contraception actually works, and what science really says about training “by your phase.” Spoiler: your uterus didn’t get the memo about being perfectly predictable—and neither did the research.

If you’ve ever thought, “Am I genuinely weaker today, or is my luteal phase just being dramatic?”… welcome home. 😮‍💨📉💅

Key takeaways
  • 🗓️ There’s no “normal” cycle that fits everyone: 28 days is an average, not a rule—typical cycles vary widely (often ~21–35 days).
  • 📈📉 Hormones fluctuate, but performance effects aren’t consistent: research shows some people feel worse in late luteal/early follicular, but objective performance changes are mixed and highly individual.
  • 🧩 Cycle syncing isn’t a one-size-fits-all training plan: there isn’t strong evidence for a universal “best workout per phase,” so personalization beats trends.
  • 😵‍💫 Perceived effort can change even if strength doesn’t: mood, sleep, stress, cramps, and symptoms can make the same workout feel harder—adjusting is not “quitting,” it’s smart.
  • 🩺 If symptoms are intense or disruptive, get checked: conditions like PCOS/endometriosis can change everything—don’t normalize suffering.

    • 🔗 Resources (links)
    🌸 Start here (easy, practical reads)
    • Menstrual Cycle 101 (Clue) — a clear overview of phases, hormones, and what’s actually happening each month: Read
    • Birth Control 101 (Clue) — a plain-English guide to the different methods + how they work: Read
      • 🧪 For the science-y listeners (research papers)
      • Menstrual cycle & performance review (Open access, PMC): PMC7916245
      • Hormones/menstrual cycle research (Open access, PMC): PMC6710244
      • Menstrual cycle / exercise-related research (Open access, PMC): PMC8508274
      • Cycle-related symptoms/physiology paper (Open access, PMC): PMC5820163
      • Cycle, hormones, and related health outcomes (Open access, PMC): PMC5708589
      • Peer-reviewed journal article (Springer) — may be behind a paywall depending on your access: 10.1007/s00737-020-01094-0

        • ...more
        View all episodesView all episodes
        Download on the App Store
        Trial & Error & Error PodcastBy Trial & Error & Error Podcast