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Testosterone is a hugely important hormone — not just for men’s health and not just for your sex life. It’s responsible for everything from body fat distribution to muscle mass to bone strength, and having low levels can impact your mood, libido, and sleep.

And while testosterone supplements and replacement therapy do exist, they’re not always successful, into the risks, and they can come with side effects — including messing up your sleep.��

There are natural ways to boost your body’s production of the hormone, however, and many of them are simple lifestyle changes that can improve your sleep and overall health, too.����

Below, we’ll explain how you can increase your testosterone naturally and how the can help.����

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First up, how do you know if you have low testosterone, also known as low t? Common symptoms include:��

• Low sex drive
• Lowered sperm count
• Erectile dysfunction��
• Loss of body hair
• Low bone density����
• Low mood��
• Trouble concentrating��
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Testosterone deficiency can be caused by:��

• Aging — total testosterone levels , whilst free and bioavailable testosterone levels fall by 2% to 3% per year.��
• Damage to or removal of testicles (or ovaries for women)
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• Metabolic syndrome — which includes high blood pressure and diabetes��
• Medications like antidepressants
• for women��
• Sleep debt and sleep disruption��

If you have symptoms like fatigue, difficulty concentrating, and low mood, sleep deprivation and being out of sync with your circadian rhythm (more on that soon) may be to blame.��

One way to rule this out is by using the . RISE uses historical phone use data and proprietary sleep-science-based models to work out your sleep need — the genetically determined amount of sleep you need each night.��

The app also works out your sleep debt. This is the running total of how much sleep you owe your body, which we measure over the last 14 nights. If you find your sleep debt is high, this could be the reason for some of your symptoms. It could also be the cause of low testosterone, too, as sleep is essential to testosterone production.��

Finally, the app predicts your circadian rhythm each day, so you can see whether you’re living at odds with it. If you are, this may be the reason for many of the low testosterone-like symptoms, or it could be exacerbating them.

Luckily, many of the ways to boost testosterone naturally include improving your sleep or doing behaviors that indirectly improve your sleep.

Heads-up: Even if you have high sleep debt, you could still have low testosterone levels and it may be worth seeking medical advice to get your hormone levels checked with a blood test.��

While the natural testosterone boosters below are risk-free and good for your health (so doing them even if your testosterone levels are fine isn’t a problem) you don’t want to take testosterone supplements if you don’t need them. Having too high testosterone levels can cause side effects like irritability, erectile dysfunction, and more.

Here’s how to boost your testosterone levels without supplements or injections.��

1. Keep Sleep Debt Low��

Sleep is essential to many things in life, including testosterone production. Your body starts producing the hormone when you fall asleep and it reaches when you enter your first bout of rapid-eye-movement (REM) sleep.

So, if you don’t get enough sleep at night, your body won’t get the chance to produce enough testosterone.��

has found after eight nights of getting five hours of sleep a night, testosterone levels are reduced by 10% to 15% in young healthy men. And the more you sleep, the more your testosterone increases — all the way up to sleeping for.��

Low testosterone can cause sleep problems like and nocturia (when you need to pee a lot at night), however, making it a vicious cycle that’s worth trying to break.��

This is where keeping sleep debt low comes in. Use RISE to find out your individual sleep need and how much sleep debt you’re carrying. We recommend keeping sleep debt below five hours to maximize energy levels, and to give your body the chance to produce enough testosterone.��

Got high sleep debt? Don’t worry, you can pay it back by:��

• Taking naps: Check RISE for the best time to do this.��
• Going to bed a little earlier.��
• Sleeping in a little later: Only sleep in for an hour to two so you don’t disrupt your circadian rhythm (more on that soon).��
• Improving your sleep hygiene: These healthy sleep habits reduce how long it takes you to fall asleep and how often you wake up during the night. More on what to do soon.

RISE can keep track of your sleep debt as you chip away at it. As well as giving your body sufficient sleep time to produce testosterone, low sleep debt will boost your mood, health, productivity, and daytime energy levels — a win-win!

You can learn more about testosterone and sleep here.��

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2. Prioritize End of Night Sleep��

Extreme morning people may say you should wake up at 4 a.m. to be productive, but your body says otherwise when it comes to testosterone production.��

One looked at young healthy men and compared getting no sleep to getting eight hours of sleep a night. We’re sure you can guess which one resulted in lower testosterone levels the next morning (hint: don’t pull an all-nighter if you’re trying to boost testosterone).��

But beyond total sleep deprivation, sleep restricted to the first half of the night, not the second half, lowered testosterone levels, too.��

Researchers compared sleeping from 2:45 a.m. to 7 a.m. and sleeping from 10:30 p.m. to 3:30 a.m. and found when sleep loss happened in the second half of the night, morning testosterone levels were lower.��

This is because REM is essential to testosterone production and we spend more time in REM as we move through sleep cycles during the night. If you cut your sleep short by waking up early, or have trouble staying asleep towards the end of the night, you may be sabotaging your testosterone production.��

Even more worrying? These results came after just one to two nights of cutting sleep short. So, prioritize getting a full night’s sleep and minimize any behaviors that could wake you up during the second half of the night (more on those soon) to ensure optimal testosterone production.��

3. Improve Your Sleep Hygiene��

Sleep hygiene is the name for the healthy habits you can do each day to improve your sleep.��

Improving your sleep hygiene can help boost your testosterone in a few ways:��

• It can help you fall asleep faster each night, so you get more sleep overall��
• It can ensure bad habits like late-night alcohol don’t wake you up during the second half of the night, sabotaging your REM sleep��
• It can make sure your sleep is healthy, natural, and you cycle through all sleep stages optimally
• It can help keep you in sync with your circadian rhythm��

You can learn more about sleep hygiene here, but here are a few key habits to start incorporating into your day:��

• Get bright light first thing: Light resets your body clock, helping you feel sleepy come bedtime. Aim for at least 10 minutes a day or 30 minutes if it’s overcast or you’re getting light through a window.��
• Avoid bright light in the run-up to bedtime: Light suppresses the sleep hormone melatonin, making it harder for you to fall asleep come bedtime. Dim the lights and put on 90 minutes before bed to stop this from happening.
• Avoid large meals, intense exercise, and caffeine too close to bedtime: These things can keep you up late into the night. Check RISE for the best time to avoid them.
• Cut down on or avoid alcohol close to bedtime: Alcohol can fragment your sleep, meaning you wake up during the night, and it — you get less of it overall and it takes you longer to reach the first REM sleep stage where testosterone production peaks. We’ve covered how long before bed you should stop drinking alcohol here, but as a rough guide, stick to one to two drinks a night and avoid alcohol two to three hours before bed. Check RISE to see the exact time to finish your drink based on your circadian rhythm each day.
• Keep your bedroom dark, cool, and quiet: As sleep in the second half of the night is important to testosterone production, make sure disruptions like early sunrises in the summer or loud noises from family members getting up before you don’t cut your sleep short. Use blackout curtains and wear an and.

Sound like a lot to remember? RISE can guide you through 20+ sleep hygiene habits each day and tell you the right time to do them to make them even more effective.��

4. Live in Sync with Your Circadian Rhythm

Your circadian rhythm is your body’s internal body clock. It runs on a roughly 24-hour cycle and dictates everything from your sleep-wake times to your body temperature fluctuations.��

Testosterone production doesn’t run on a circadian rhythm — it’s dependent on sleep no matter when you get it. But hypothesizes that circadian rhythm disruption may lead to lowered testosterone levels. More research needs to be done into this area to confirm.��

One looked at testosterone levels and shift work, which often leads to living out of sync with your circadian rhythm as you’re working at night, sleeping during the day, and often changing your sleep schedule regularly.��

Surprisingly, the study found testosterone levels in shift workers depended on how satisfied those shift workers were with their work life. Dissatisfied shift workers had lower testosterone levels than satisfied ones.��

Low testosterone levels were linked to greater sleep need, disturbed sleep, and sleepiness, too.��

The researchers stated: “The lower testosterone in dissatisfied shift workers may be interpreted with four different perspectives: sleep loss, stress, depression, and lack of control.”��

“It seems reasonable to hypothesize that the low levels of testosterone may be due to disturbed sleep and/or a high sleep need, which, in turn, may result in more sleepiness and a greater need for recovery after a work period and, as a consequence of these problems, dissatisfaction with the shift schedule.”

(We’ve already shown how sleep loss can cut your testosterone production short, but we’ll dive into stress and depression soon.)��

So, if you’re a shift worker who loves your job, you may not need to worry too much about work impacting your testosterone, as long as you’re keeping your sleep debt low.��

Living out of sync with your circadian rhythm can lead to factors that do impact testosterone levels, however, including high sleep debt, fragmented sleep, and stress, so if work isn’t the reason you’re out of sync, you should still strive to get in sync.

You can sync up with your circadian rhythm by:��

• Keeping a consistent sleep schedule: Find a sleep schedule that works for you and strive to wake up and go to bed at the same times each day, even on weekends.��
• Get bright light first thing: Again, bright light signals to your brain that it's time to be awake and resets your circadian rhythm for the day. Aim for at least 10 minutes of light first thing. Your circadian rhythm is a reflection of your sleep-wake times and light exposure over the last two to three days, so aim for consistency.��
• Eat meals at roughly the same times and during the day: Irregular meal times and eating too close to bedtime can throw off your circadian rhythm and keep you up at night.
• Go to bed during your Melatonin Window: This is the roughly one-hour window of time when your body’s rate of melatonin production is at its highest. Head to bed during this window and you’ll have an easier time falling and staying asleep, and therefore staying in sync. Check RISE for the timing of your Melatonin Window each day.��

The RISE app predicts your circadian rhythm each day, so you can see when your body naturally wants to wind down for bed and go to sleep. You can then sync up your meals, light, and sleep-wake times to match.

It’s also useful to see what we call your Wake Zone, or when your body naturally wants to wake up. Strive to sleep until this time to stop sleep loss at the end of the night from tanking your testosterone production.

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Some Other Ways to Increase Your Testosterone Naturally��

Beyond focusing on sleep and circadian rhythm best practices, there are some other natural treatments to help maintain healthy testosterone levels.��

The good news? Many of these testosterone-boosting behaviors help to improve your sleep and overall health, too.

5. Get 30 Minutes of Sunlight Every Day

Light exposure first thing is great for your sleep and circadian alignment — which boost testosterone levels — but light can also boost production of the hormone directly.

shows UVB-treated mice have higher levels of testosterone. Sunlight also boosts your vitamin D levels, which have been linked to low testosterone.��

For humans, get 30 minutes of sunlight exposure on your skin each day. For sleep, it’s important to get light into your eyes — although don’t look directly at the sun, of course. Simply head out without sunglasses and expose some skin while you’re at it.����

6. Lower Your Stress Levels

High stress and the stress hormone cortisol have been linked to lowered testosterone in both and .��

As well as reducing chronic stress overall, incorporate relaxation techniques into your life to reduce , which has also been linked to lower testosterone levels.��

RISE can guide you through relaxation techniques like diaphragmatic breathing and progressive muscle relaxation to help. Lowering your stress and cortisol levels ensures you can unwind for bed and stop anxious thoughts from keeping you up at night, too.

7. Exercise

Is there nothing a good workout can’t fix? Men who regularly do have higher testosterone than sedentary men.��

When it comes to the type of exercise, opt for strength training and weightlifting (testosterone is elevated directly after in men, and sometimes in women) and high-intensity interval training (HIIT) as boosts levels in both non-athletes and athletes.��

However, don’t overdo it, especially cardio. has been linked to lower testosterone levels. When previously sedentary males increased their weekly running to about 35 miles per week, their testosterone levels decreased. More research needs to be done, but clearly, there’s a middle ground somewhere.��

Working out also helps your fall asleep each night — just be sure to avoid intense exercise about an hour before bed. Check RISE for the best time to work out each day. The app can tell you when you’ll have more energy and when you should skip the gym and focus on winding down.��

RISE users on iOS 1.202 and above can click to set up their avoid late workouts reminder.

8. Eat a Healthy Diet High in Healthy Fat

Eat a healthy diet to promote testosterone production. , like the ones you get from eating sugary snacks or simple carbs, can tank your testosterone levels.��

You should also eat plenty of healthy fats such as avocados, nuts, and seeds — can decrease testosterone.,, and may also boost the hormone.��

9. Lose Weight

Eating a healthy diet will also help you maintain or lose weight, which will also boost testosterone. Testosterone concentration is in those who are obese compared to those with a normal body mass index (BMI).��

Weight loss with both for those who are overweight or obese has been shown to boost testosterone. can also help those with sleep apnea boost their testosterone levels (we summarize what the science says about taking testosterone if you have sleep apnea here).��

Losing weight is hard to do at the best of times, but low testosterone can cause , especially belly fat, so be extra vigilant about your diet, exercise, and sleep.��

10. Cut Down on Alcohol

Alcohol can not only disrupt your REM sleep, it can directly. You don’t have to give up alcohol altogether, though.��

While heavy drinking is associated with lower levels, suggests low-level amounts of alcohol can actually increase testosterone levels in the short-term in both men and women.��

Remember to avoid alcohol in the run-up to bedtime to stop it from waking you up during the night.��

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11. Talk to Your Doctor About Your Medication

The medication you’re taking for other health issues could be causing lowered testosterone as a side effect., used to lower cholesterol, can lower testosterone in both men and women, for example.����

12. Take Dietary Supplements with Caution��

More research needs to be done into the safety and efficacy of supplements, so we recommend focusing on the risk-free natural cures for low testosterone like lowering sleep debt, exercising, and cutting down on alcohol.��

However, there is some evidence to show zinc supplements can boost testosterone in both and , and may help, too.��

Speak to a doctor before taking supplements, however, especially if you have an existing health condition. And avoid steroids, which have been linked to sleep problems like and more .��

Boost Your Testosterone with a Good Night’s Sleep��

Your body needs a good night’s rest to produce enough testosterone, so to boost your levels naturally, focus on your sleep. Make sure you’re keeping your sleep debt low overall and focusing on not cutting your sleep short in the second half of the night. Staying in sync with your circadian rhythm and improving your sleep hygiene will help make this happen.��

Use the to find out how much sleep debt you have, see a prediction of your circadian rhythm each day, and get personalized reminders for when to do 20+ sleep hygiene habits to help make getting a good night’s sleep easier to do. The good news? All of these behaviors will boost your mood, productivity, and health, alongside testosterone.��