Does Exercise Ease Period Cramps? Menstrual Cycle FAQs

Working out during your period can feel counterintuitive when you're dealing with cramps, fatigue, and low motivation. But exercise is one of the most effective ways to manage menstrual symptoms and optimize your training during this phase of your cycle.

The menstrual cycle starts in your teens and continues for about 40 years. Yet many of us, regardless of age, still have questions about how to fit exercise into our cycles and whether working out during menstruation is beneficial or harmful. We've gathered the most popular questions WHOOP members ask us and answered them in one spot.

Benefits of working out on your period

Exercising during your period offers significant physiological and psychological advantages. As your cycle begins, your estrogen and progesterone levels drop, which can make your body more primed for high-intensity efforts and strength gains. Working out helps release endorphins, your body's natural painkillers, which can alleviate cramps and improve your mood.

Maintaining your fitness routine during this phase supports better sleep consistency and helps regulate your body temperature. This leads to more restorative rest and higher Recovery scores.

Best exercises to do on your period

The early days of your period are an excellent time to focus on strength training and high-intensity interval training (HIIT). Because your hormone levels are low, your body is better able to access carbohydrates for fuel, making it easier to hit peak performance during short, intense bursts of activity. If you are experiencing severe symptoms, low-impact aerobic exercises like brisk walking, light jogging, or yoga are also highly effective.

These activities increase blood flow to the pelvic region, which helps reduce the inflammation responsible for cramping.

Exercises to avoid during your period

While you do not need to avoid exercise entirely, it is smart to modify your routine if you are feeling unusually fatigued or experiencing heavy bleeding. Prolonged endurance exercises, such as long-distance running or extended cycling sessions, can be more taxing on your body during this time and may exacerbate feelings of exhaustion. If your WHOOP Recovery is in the red or low yellow, prioritize active recovery over pushing for a high Strain.

Does exercise reduce period cramps?

Yes! Working out during your period can relieve cramps, boost your mood, and reduce other symptoms by releasing endorphins which block pain receptors in your brain. Aerobic exercise such as running, or even a brisk walk, helps reduce the inflammation that causes cramps and can release enough endorphins to provide some relief. Regular exercise also increases blood flow to your uterus, which can cramp so hard that it cuts off blood flow, sending pain signals to the brain.

What should I be doing to fight fatigue during my period?

Periods can come with unwanted symptoms and feeling tired is one of them. Fatigue is caused when levels of hormones including estrogen, progesterone, and serotonin decrease after ovulation during the late luteal stage or your period. Low hormones can lead to inflammation, feeling sad or anxious, poor sleep, and decreased energy levels.

Estrogen levels continue to be low through menstruation and can leave you feeling tired. In addition, very heavy periods may lead to iron deficiency, which can also cause fatigue. Taking omega 3 fatty acids, magnesium, or zinc supplements may help counter the symptoms.

Your doctor can also order a blood test to see if you have an iron deficiency, and then prescribe an iron supplement if you do.

The menstrual cycle has two phases: follicular and luteal. Ovulation separates the follicular and luteal phases and Menstruation denotes the beginning of the follicular phase.

I lack motivation to work out on my period, how do I combat this?

Low motivation often comes from fluctuations in hormone levels in the luteal stage of your cycle as estrogen and progesterone levels begin to fall. These hormones affect neurotransmitters including serotonin and dopamine, which influence mood, motivation, and sleep. You might feel sad or anxious, irritable, or lack motivation.

Levels of all four hormones begin rising again after the onset of your period, but it may take a few days before you begin feeling better. But, while you might not be motivated to work out during your period, there are benefits to doing so. Your body is prepared to work harder during your period than at any other time during your cycle.

Additionally, you can gain more muscle mass and burn more fat than usual during this time of month. You may also feel more recovered the next day after a hard workout during your period. If you're not feeling motivated to try your full workout routine, Dr. Stacy Sims suggests trying short bursts of interval training.

"Something like 20 seconds all out 5-8 times with 2 minutes' cruise between, then call it. The super-intense work will increase post-exercise anti-inflammatory responses, release endorphins, and because it is short, it is not as taxing mentally or physically as doing a full structured workout."

Do you get weaker on your period?

The opposite is true! This study found that strength training during the follicular phase (from your period to ovulation) results in greater increases in muscle strength than during the luteal phase (between ovulation and your period). This is the time to do heavy resistance training, high-intensity workouts, and recover well the next day.

Why am I always in the yellow in the first few days of my period?

The WHOOP recovery metrics are based on nightly changes in sleep, HRV, resting heart rate, and respiratory rate. Recovery is a personalized metric. In general recovery in the late luteal stage will be lower compared to the follicular stage.

Can exercise cause you to lose your period?

Hypothalamic amenorrhea, or the halting of your menstrual cycle, happens when you're not consuming enough calories to support your normal activities and training. Your body responds by halting production of hormones involved in the menstrual cycle, which reduces ovulation and eventually leads to a lost cycle. The first step to getting your period back is to talk to your doctor.

Training with WHOOP Menstrual Cycle Insights

If you do not use hormonal birth control, Menstrual Cycle Insights adjusts your sleep and strain recommendations in the WHOOP app based on the phase of your monthly cycle, helping you maximize your training. If you do use a form of hormonal birth control, the WHOOP Strain Coach and Sleep Planner provide personalized recommendations based on your unique physiology.

Menstrual Cycle Insights tracks your cycle and makes recommendations based on the phase and your personal physiology.

Frequently asked questions about working out on your period

Is it good to still work out on your period?

Yes, maintaining your fitness routine during your period is highly beneficial. Exercise helps release endorphins that naturally reduce pain and improve your mood. It also supports better sleep and recovery, provided you adjust your intensity based on how your body feels.

Can I walk 10,000 steps during my period?

Absolutely. Walking is an excellent low-impact aerobic exercise that increases blood flow and helps reduce pelvic inflammation and cramping. If you feel up to it, hitting your daily step goal is a great way to stay active without overtaxing your body.

What is the 7 2 1 rule for menstruation?

The 7 2 1 rule is a general guideline some people use to manage their cycle, referring to 7 days of a typical menstrual phase, 2 days of heavy flow, and 1 day of peak symptoms. While this framework exists, it is important to remember that every cycle is unique. Tracking your personal data provides a much more accurate picture of your individual physiology than generalized rules.