Herbie Murray
Sleep is essential for physical and mental health, and working out on little sleep can be detrimental to your health and performance. However, some people may find it beneficial to engage in light physical activity or moderate workouts after a night of poor sleep, as it can boost energy levels and improve sleep quality. The decision to work out after a night of insufficient sleep depends on various factors, such as the severity of sleep deprivation, the type of workout, and individual preferences.
Should I work out if I didn't sleep well?
| Characteristics | Values |
|---|---|
| Benefits of working out after a bad night's sleep | A morning workout can give your tired brain a much-needed lift and boost alertness. |
| Training in suboptimal conditions is generally better than not training at all. | |
| Exercise helps decompress and clear the mind, releasing chemicals that relieve signs of stress, anxiety and depression (well-known sleep disruptors). | |
| Downsides of working out after a bad night's sleep | You will get exhausted faster, have slower reaction time and decision-making skills, and increase your risk of injury. |
| You might experience heightened levels of cortisol, which can cause weight gain, a weakened immune system, and more. | |
| Your body produces less human growth hormone (HGH), which is crucial for muscle recovery and growth. One study found that one night of no sleep reduced muscle growth by 18%. | |
| Recommendations | Prioritize getting good sleep. |
| If you didn't get adequate sleep, you're starting your workout at a disadvantage. | |
| If you feel good enough to train, then go ahead, but be mindful of your body and don't overdo it. | |
| If you feel terrible, it might be best to skip the workout or opt for a lighter or shorter routine. |
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What You'll Learn
The pros of working out after a bad night's sleep
While sleep is crucial to any workout regimen, there are some benefits to working out after a poor night's sleep. Firstly, exercise can help to reduce stress, a well-known sleep disruptor, by releasing chemicals that relieve signs of stress, anxiety, and depression. This can, in turn, help to improve your sleep in the long run. Secondly, a morning workout can give your tired brain a boost and increase alertness. Research has shown that moderate-effort exercise can significantly reduce fatigue, and a 10-minute stair climb can boost alertness more effectively than caffeine. Thirdly, while you may not be able to perform at your usual intensity, you can still maintain your routine and avoid the negative consequences of skipping a workout. Finally, training in suboptimal conditions is generally better than not training at all, and one session of post-sleep-deprivation exercise is unlikely to make a significant difference in the long run.
However, it is important to prioritize good sleep as it is crucial for physical and mental health, as well as muscle recovery and growth. If you are severely sleep-deprived, it may be best to skip the workout or modify it to avoid injury.
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The cons of working out after a bad night's sleep
Sleep is crucial to any workout regimen. It energises and restores, helping your body grow and repair the damage caused by the previous day's activities. Working out after a bad night's sleep can have several negative consequences:
Increased risk of injury: Working out while sleep-deprived can increase your risk of injury. With less energy and slower reaction times, you may be more prone to accidents or overexertion, which could result in strains, sprains, or other types of injuries.
Reduced muscle growth: Sleep is essential for muscle recovery and growth. One study found that a single night of inadequate sleep reduced muscle growth by 18%. If you're trying to build muscle, getting adequate sleep is crucial, as your body produces human growth hormone (HGH) during sleep, aiding in muscle recovery and growth.
Decreased performance: Sleep deprivation can lead to decreased physical performance. You may find yourself getting exhausted faster, unable to maintain the same intensity or duration as you normally would. This can hinder your progress and impact your overall workout routine.
Heightened stress levels: Constant stress and lack of sleep can lead to increased levels of cortisol, a stress hormone that has negative effects on the body, including weight gain and a weakened immune system. Instead of working out, prioritising sleep can help reduce cortisol levels and improve your overall health.
However, it's important to note that everyone's experience with working out after a bad night's sleep may vary. Some people may still feel capable of working out and might not experience any significant negative consequences. Ultimately, it's essential to listen to your body and adjust your routine as needed. If you feel up to it, you can always modify your workout to be lighter or shorter.
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How to work out safely after a bad night's sleep
Sleep is essential for energising and restoring your body, and it plays a crucial role in repairing any damage caused by the previous day's activities. While it is generally recommended to prioritise getting a good night's sleep, there may be times when you have no choice but to work out after a bad night's sleep. Here are some tips to help you work out safely in such situations:
Listen to Your Body: It's important to assess how you feel. If you're feeling extremely fatigued or stressed, it might be best to skip an intense workout and opt for a lighter or shorter routine. Pushing yourself too hard when you're already exhausted can increase your risk of injury.
Start Slowly: If you decide to work out, begin with a slower pace or lighter intensity than usual. You can gradually increase the intensity as you start feeling more awake and energised. Remember, it's better to have a slightly less intense workout than to risk an injury that could set you back for a more extended period.
Consider Alternative Exercises: Opt for moderate-effort exercises or activities that don't require heavy lifting or high-intensity intervals. For example, a 10-minute stair climb can boost your alertness more effectively than caffeine, according to research.
Stay Hydrated: Make sure you drink plenty of water before and after your workout. Staying hydrated is crucial, especially if you're feeling tired, as it can help improve your alertness and overall performance.
Avoid Caffeine Overload: While a small amount of caffeine before your workout might help boost your energy, be cautious not to overdo it. Excess caffeine can interfere with your sleep later that night, creating a cycle of sleep deprivation and reliance on stimulants.
Prioritise Sleep in the Future: While it's okay to work out after an occasional bad night's sleep, make sure you prioritise getting enough sleep regularly. Set a consistent bedtime, establish a relaxing bedtime routine, and create a sleep-friendly environment to improve your overall health and well-being.
Remember, it's always a good idea to listen to your body and adjust your workout routine accordingly. While training in suboptimal conditions is better than not training at all, be mindful of your body's limits to avoid any potential harm.
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The impact of sleep on muscle growth and recovery
Sleep is crucial to any workout regimen. It helps the body recover and energises and restores it, aiding in muscle growth and repair. Getting a good night's sleep is essential to maximising your strengthening routine and muscle recovery.
During sleep, the body undergoes several physiological changes that aid in the repair and recovery of damaged tissues. Sleep helps regulate hormone levels that are important for muscle recovery. Testosterone, a hormone that promotes muscle growth and repair, is primarily released during sleep. Lack of sleep can disrupt testosterone production, which may negatively impact muscle recovery. Sleep also plays a role in reducing inflammation in the body. Intense exercise can cause muscle damage and inflammation, and during sleep, the body releases anti-inflammatory cytokines that help reduce inflammation and promote healing.
Sleep deprivation can delay muscle recovery, increase the risk of injury, and reduce muscle growth. It can also weaken muscle recovery by increasing protein breakdown, which adversely affects protein synthesis and promotes muscle atrophy. Minimal sleep (6 hours or less) for four days can negatively impact muscle recovery, decreasing it and slowing down the healing process.
However, some people report having their best workouts while sleep-deprived, and training in suboptimal conditions is generally better than not training at all. If you feel good enough to train, then go ahead, but be mindful of your body and don't overdo it. If you didn't get a good night's sleep, you might want to take it easy and do a slightly shorter or lighter workout.
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Alternative ways to boost energy levels
While exercise is a great way to boost your energy, there are other ways to increase your vitality if you're feeling too tired to work out. Here are some alternative ways to boost your energy levels:
Get some sunlight and fresh air: Research suggests that spending time outdoors, especially on a warm, clear day, can enhance your mood, memory, and ability to absorb new information. Even if you can't get outside, opening the shades and letting the sunshine in can help improve your self-esteem.
Eat nutritious foods: Eating a well-balanced diet with whole foods that are rich in protein, fiber, and a low glycemic index can help increase your energy levels. These foods provide healthy nutrients and help stabilize your blood sugar levels, preventing energy crashes throughout the day. Include foods like whole grains, high-fiber vegetables, lean proteins, healthy fats, and nuts in your diet.
Stay hydrated: Dehydration can lead to fatigue, as water is essential for the optimal function of every cell in your body. Aim for at least 8 glasses of water daily to keep your energy levels stable throughout the day.
Manage stress: Chronic stress can deplete your energy levels. Engage in activities that help you relax and reduce stress, such as mindfulness, meditation, yoga, tai chi, or singing. Social support is also important, so consider talking with a friend or relative, joining a support group, or seeking professional help if stress becomes overwhelming.
Get enough sleep: Sleep is foundational to replenishing your energy levels. Most adults need 7-9 hours of sleep per night. Prioritize a consistent sleep schedule and create a restful environment to improve your sleep quality and boost your energy levels naturally.
While these alternative methods can help boost your energy, don't forget that exercise, when you're well-rested, is still an excellent way to increase your vitality and improve your overall health.
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Frequently asked questions
Working out while sleep-deprived is not recommended as it can increase the risk of injury and negatively impact performance. However, skipping a workout after a bad night's sleep is not always necessary. Instead of an intense workout, opt for a gentler and more enjoyable form of exercise, such as walking or yoga.
Working out while sleep-deprived can lead to increased stress levels, impaired coordination, slower reaction times, and elevated risk of workout-related injuries. Additionally, sleep deprivation can cause elevated levels of the stress hormone cortisol, hindering fat-burning and contributing to weight gain.
Yes, instead of intense workouts, consider gentler activities such as walking, yoga, or stretching. You can also incorporate several short bouts of exercise throughout your day, such as bodyweight squats or practicing your push-up form. Prioritize sleep when possible, as it is crucial for recovery and muscle growth.
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