Exercise can influence key hormones, including growth hormone, testosterone, estrogen, insulin, cortisol, and endorphins, which affect metabolism, mood, energy, and recovery.
Exercise has countless benefits for physical and mental health and is a key component of maintaining “hormone harmony,” aka healthy hormone signaling. When you exercise regularly, you’re also engaging certain hormonal pathways that are essential to your well-being. Move, recover, and fuel yourself well.
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Key Takeaways:
Exercise can influence key hormones, including growth hormone, testosterone, estrogen, insulin, cortisol, and endorphins, which affect metabolism, mood, energy, and recovery.
Different types of workouts — whether it’s strength training, cardio, or mindfulness movements like yoga — affect different hormones.
Overtraining or underfueling, especially without enough calories, sleep, and recovery, can potentially contribute to hormonal disruptions that have effects on your energy, mood, metabolism, muscle growth, and more.
Exercise plays a powerful role in how hormones are released and how sensitive your body is to their effects.
Whether you’re lifting weights, going for a run, or rolling out your yoga mat, movement can help support hormonal health and optimize your overall health — as long as your movement is intentional, well-fueled, and paired with adequate nutrition, recovery, and sustainable training habits.
Hormones are produced by various glands throughout your body that are part of your endocrine system.
They travel through your bloodstream, telling your cells and organs what to do and when to do it, especially when it comes to things like growth, reproduction, metabolism, mood, sleep, and immune response.
When hormones are in tune and working well together, things are good; when they’re disrupted for whatever reason, that’s when you may notice symptoms like fatigue, moodiness, poor sleep, weight changes, and generally just feeling “off” (though these symptoms are common and can have many possible causes).
Exercise is an active part of hormone regulation: Movement influences hormone release, and in turn, hormones enhance your body’s response to movement.
First, let’s cover some of the major hormones produced in your body and how they’re influenced by your exercise habits.
Growth hormone is sometimes referred to as “the fountain of youth” because of its role in tissue repair, muscle growth, bone density, and fat metabolism. However, high levels are not inherently better and do not reverse aging.
Growth hormone is produced by your pituitary gland and stimulates the release of another powerful hormone called insulin-like growth factor-1 (IGF-1), which is primarily made in the liver. Together, GH and IGF-1 form a dynamic duo that supports muscle protein synthesis, cell regeneration, and metabolic health.
High-intensity exercise, especially HIIT and strength training, can stimulate your pituitary gland to release GH, which in turn signals the liver to produce more IGF-1.
This process is part of the body’s normal adaptation to exercise and may support recovery and training adaptations over time when combined with adequate nutrition and sleep.
Growth hormone and IGF-1 levels naturally decline with age. Regular physical activity supports overall metabolic health rather than preventing this age-related change.
Testosterone is the predominant male sex hormone (androgen), though it’s found in smaller amounts in women as well. It’s a key player in your muscle growth, bone density, red blood cell production, mood, and libido.
Resistance training, especially compound movements that engage your large muscle groups (like your quads and backside), triggers a temporary increase in testosterone.
When you eat carbohydrate-containing foods and drinks, carbs are broken down into glucose (sugar) molecules that are sent to your bloodstream. Insulin is made by your pancreas, which moves said sugar from your blood into your cells, where it can be used for energy.
Insulin resistance occurs when cells respond less effectively to insulin, which can lead to higher blood glucose levels and increase the long-term risk of type 2 diabetes and other cardiometabolic conditions.
Exercise (and subsequent weight loss when necessary) is known to improve insulin sensitivity, especially muscle-building activities mixed with cardio and good nutrition.
You may know cortisol as your primary stress hormone. In short bursts, cortisol helps increase your focus, energy, and responsiveness to perceived threats.
Chronic stress and persistently elevated cortisol are associated with sleep disruption and can contribute to adverse metabolic effects in some people.
Intense exercises directly increase cortisol, but engaging in regular, moderate-intensity exercises can improve your body’s ability to manage stress, improving the stability of cortisol levels over time.
Endorphins are thought to play a role in the “runner’s high” and are part of the reason you often feel like you’ve conquered the world after a great workout.
They’re actually neurotransmitters (brain chemicals) that interact with pain receptors in your brain, reducing the perception of pain and triggering a positive feeling. Their role in exercise-related euphoria is indirect and not fully explained by circulating levels alone.
And you don’t need to run a marathon to feel them. Any form of exercise can stimulate their mood-boosting release, which supports mood and stress management.
The physical activity guidelines recommend adults get 150 to 300 minutes of moderate-intensity exercise or 75 to 150 minutes of vigorous-intensity exercise per week (or a combination of both), plus at least two days of strength and resistance training.
From there, you can tailor your exercise routine accordingly. With that in mind, let’s examine how different types of movement influence specific hormones.
Strength training can influence growth hormone and testosterone levels, particularly in the short term after workouts.
Here are some tips to optimize these effects:
Do compound exercises that engage larger muscle groups, such as deadlifts, squats, and shoulder presses.
Aim for progressive overload, which means gradually increasing the difficulty of your resistance exercises, whether that means increasing the weight used, the reps done, or both.
If you don’t have access to machines or weight lifting with dumbbells, try resistance bands or do bodyweight exercises like pushups and lunges.
Cardiovascular or aerobic exercise isn’t just great for improving your lung function and heart health, but also managing stress and enhancing insulin sensitivity, which are important parts of healthy hormone signaling and overall hormonal balance.
Moderate-intensity cardio helps your body use glucose more efficiently, making your cells respond better to insulin. It’s also a great outlet when you’re feeling stressed, promoting healthier cortisol levels over time.
Here are some ways to get more cardio in your life:
Join a community rec sports league
Swim laps at the pool
Take your dog for a run
Go for a brisk walk on your lunch break (or use a walking pad during a meeting)
Take a group fitness class
HIIT involves alternating short bursts of intense exercise with brief, lower-intensity recovery periods, which can trigger strong acute training responses, including increases in growth hormone after workouts for some people.
By nature, HIIT has a high energy demand that then requires adequate recovery support, which signals a certain hormonal response. HIIT has been shown to improve insulin sensitivity, but it also temporarily spikes cortisol, so it’s important to balance this type of exercise with others — and to get enough rest in between sessions.
Examples of what a HIIT workout might look like include:
Three minutes of running hard on the treadmill followed by a two-minute recovery jog or walking pace, repeated three times
A circuit workout where you rotate stations like box jumps, stationary biking, medicine ball tosses, and jumping rope with lower-intensity abdominal exercises in between for recovery
Practices like yoga and Pilates may calm your nervous system, enhance mindfulness, and improve perceived stress and sleep in some people.
By focusing on breathwork, presence, and controlled movements, these practices activate your parasympathetic nervous system — which is your “rest and digest” mode.
Benefits can include better sleep, digestion, and overall well-being. They’re also helpful for improving your body awareness and your ability to stay attuned to how you feel. These can be great options for recovery between more challenging workouts during your week.
Exercise has countless benefits for your mental, physical, and hormonal health, but it’s also possible that overdoing it, especially if you’re undernourished, can have the opposite effects.
It’s one thing to be on a regular exercise kick where you’re moving your body most days of the week. It’s another when you get into a cycle of chronic overtraining, which becomes a significant stressor.
Pushing too hard, too often, without enough recovery can increase overall physiological stress and may affect cortisol regulation in some people. High stress and inadequate recovery can be associated with changes in sex hormone signaling and can worsen sleep.
Additionally, underfueling your body can send your hormones into scarcity mode, though this has mostly been studied in instances of significant disordered and restrictive eating. If training demands outpace energy intake for long periods, low energy availability can contribute to hormonal changes that affect reproductive hormones like testosterone and thyroid hormones.
Everything is connected, which is particularly true when it comes to exercise and hormones. That’s why it’s so important to understand how your lifestyle may be influencing your hormonal balance and tailor your exercise habits accordingly.
Here are some important things to keep in mind when it comes to exercise and hormones:
Listen to your body. This sounds simple, but it’s a crucial piece of advice. Your body is constantly providing feedback, but this can be easy to miss if you’re not paying attention. Consider things like feeling perpetually tired despite sleeping, erratic moods, or changes in strength. These may be a sign that you need more recovery, nutrition, sleep, or a change in training intensity.
Prioritize your recovery. Sleep is when growth hormone peaks and your body does its best repair work. Chronic sleep deprivation is linked to hormone disruption related to things like insulin response, cortisol, and even appetite regulation. Aim for seven to nine hours of quality sleep per night, prioritize recovery days in your workout schedule, and take stretch-and-move mindfulness breaks throughout the day.
Fuel adequately and wisely. What you’re eating doesn’t just affect your waistline and well-being, but also your hormonal balance. The best approach is to focus on minimally processed foods, including lean proteins, healthy fats, and fiber-rich carbohydrates. Get vitamins, minerals, and antioxidants from plenty of colorful fruits and vegetables. Avoid ultra-processed foods, as diets high in ultra-processed foods are associated with poorer cardiometabolic health, including weight gain and worse blood sugar control in some studies.
If you have persistent symptoms like unexplained fatigue, significant mood changes, changes in weight, or changes in sex drive, it is important to see a healthcare provider to discuss targeted hormone testing.
A simple blood, saliva, or urine test can be ordered by your healthcare provider to gain insight into what may be going on hormonally, such as your thyroid hormones, testosterone, cortisol, or growth factors.
At-home tests for certain hormones are also available. If you use an at-home test, check whether the laboratory processing the sample is CLIA-certified, as CLIA sets quality standards for labs performing human diagnostic testing. Testosterone testing kits through Hims use CLIA-certified labs.
Testing helps take the guesswork out of the issue, but results need to be interpreted in context by a provider. From there, you and your provider can come up with a personalized plan to bring things back into balance.
Read more about the pros and cons of at-home testing kits in our guide.
Below are some answers to common questions about the link between hormones and exercise.
Changes in hormone responses and metabolic markers can occur with consistent exercise, though the timeline and direction vary by person. For example, insulin sensitivity can improve after just weeks of regular activity, while stress-related hormone patterns may shift more gradually and vary between individuals.
Yes. Excessive, high-intensity training without adequate rest, and especially with inadequate nutrition, may suppress sex hormones and contribute to changes in cortisol regulation along with fatigue and sleep issues.
A mix of strength training, moderate-intensity cardio, and restorative practices like yoga provides the most balanced hormonal response.
There’s no single “best” time, as it mostly depends on your goals and schedule. Morning or afternoon workouts work well for many people, and if sleep is a concern, some people prefer avoiding high-intensity exercise close to bedtime, while gentle evening activity may support relaxation.
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