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Melatonin is a hormone that is produced naturally in the body and is often referred to as the sleep hormone. Melatonin helps regulate the body's sleep-wake cycle, also known as the circadian rhythm, by promoting a state of quiet wakefulness that helps prepare the body for sleep. While melatonin does not induce sleep, it helps people fall asleep more easily by letting the body know that it is time for bed. Melatonin supplements have grown in popularity, with many people using them to aid sleep disorders and jet lag. However, it is important to consult a healthcare professional before taking melatonin, especially for children, as there are potential side effects and risks associated with its use.
| Characteristics | Values |
|---|---|
| What is Melatonin | A hormone that regulates the sleep-wake cycle |
| How does it work | Melatonin lets your body know that it's time for bed so that you can fall asleep more easily |
| Who can use it | Melatonin is safe for most people to take nightly for one to two months. Melatonin should not be used by pregnant or breastfeeding women or those with autoimmune disorders, seizure disorders or depression. Melatonin is rarely the right choice for children under the age of 5. |
| Effectiveness | Melatonin may increase the duration and quality of your sleep and help with insomnia. It can also help manage other health conditions like Alzheimer's disease and age-related macular degeneration. |
| Side effects | The most common side effects of melatonin supplements are drowsiness and headaches. Many people experience vivid dreams and nightmares while taking melatonin. |
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What You'll Learn
Melatonin is a hormone that regulates the sleep-wake cycle
Melatonin is a hormone that is produced naturally in the body and helps regulate the sleep-wake cycle. It is often referred to as the "sleep hormone" because high levels of it can help you fall asleep. Melatonin does not make you sleep, but as its levels rise in the evening, it puts your body into a state of quiet wakefulness that promotes sleep.
The body typically starts to release melatonin around one to three hours before bedtime. Melatonin supplements provide your body with additional melatonin, which can help some people fall asleep faster and improve sleep quality and duration. They are often used to treat insomnia or jet lag, as well as to adjust the sleep schedule for work or school. However, melatonin supplements are not a cure-all for sleep difficulties, and it is recommended to try improving sleep hygiene and establishing a consistent sleep routine before resorting to supplements.
While melatonin supplements are generally considered safe for short-term use in most adults, there is limited research on their long-term effects. It is important to consult a healthcare provider before taking melatonin, especially for children and adolescents and individuals with certain medical conditions or taking medications. Melatonin may have side effects, such as drowsiness, headaches, and vivid dreams or nightmares. It can also interact with alcohol, and there are uncertainties about its effects on hormonal development.
Additionally, melatonin supplements are not recommended for pregnant or breastfeeding individuals due to a lack of data on their safety. It is also important to be cautious about the source and dosage of melatonin supplements, as some products may not accurately reflect their listed contents or contain additional hormones. Overall, while melatonin can be beneficial for regulating the sleep-wake cycle, it should be used with caution and under the guidance of a healthcare professional.
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Melatonin supplements are increasing in popularity
For some people, melatonin supplements have a hypnotic effect and help them fall asleep. They can increase sleep quality, how quickly you fall asleep, and how long you sleep. Melatonin supplements are often used to help with insomnia and other sleep-related conditions, such as delayed sleep-wake phase disorder (DSWPD) and shift work disorder. They can also be used to overcome jet lag or to adjust to an earlier sleep schedule.
Research supports the effectiveness of melatonin supplements for improving sleep. A 2019 review of 11 studies found that melatonin decreased sleep latency by almost 3 minutes and increased total sleep time by about 30 minutes compared to a placebo. Another 2021 review of 23 studies involving people with disease-related sleep disorders found that melatonin significantly improved sleep quality and duration while reducing sleep disturbances and sleep latency.
While melatonin supplements are generally considered safe for short-term use, there are some potential side effects to be aware of, including drowsiness, headaches, and vivid dreams or nightmares. Melatonin supplements may also raise blood sugar levels and increase blood pressure in people taking certain medications. It is important to speak with a doctor before taking melatonin to ensure it is safe and appropriate for your individual needs.
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Melatonin may help manage other health conditions
Melatonin is a hormone that is produced naturally in the body and helps regulate the sleep-wake cycle. It is often referred to as the "sleep hormone" since high levels of it can help people fall asleep. Melatonin supplements are synthetic versions of this hormone and are growing in popularity, with nearly two-thirds of American adults having tried them. While melatonin can help with sleep, it is not a cure-all for sleep difficulties, and it is recommended that people address the root cause of their sleep issues before turning to supplements.
In addition to improving sleep, melatonin may help manage other health conditions:
Alzheimer's Disease
Studies suggest that melatonin improves sleep quality and morning alertness in individuals with Alzheimer's disease. However, more research is needed to understand melatonin's effect on the brain.
Surgery Anxiety
A 2015 review of 12 studies found that melatonin supplements may help reduce anxiety before surgery. However, it is unclear if melatonin helps lower anxiety after surgery.
Age-Related Macular Degeneration
A 2019 study found that melatonin supplements may reduce age-related macular degeneration by neutralizing free radicals and decreasing inflammation.
Cancer
Studies on the effect of melatonin on cancer symptoms or treatment-related side effects have been small and had mixed results. It is important to note that unproven products should not replace or delay conventional medical treatment for cancer. People with cancer should consult their healthcare providers before using melatonin.
Epilepsy and Blood Thinner Medication
People with epilepsy and those taking blood-thinning medications should be under medical supervision when taking melatonin supplements.
While melatonin may help manage certain health conditions, it is important to consult a healthcare professional before taking it, especially for individuals with existing medical conditions, children and adolescents, pregnant or breastfeeding women, and those taking certain medications.
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Melatonin is not a cure-all for sleep difficulties
Melatonin is a hormone that is produced naturally by the body to regulate the sleep-wake cycle. It is often called the "sleep hormone" because high levels of melatonin can help you fall asleep. However, melatonin itself does not make you sleep. Instead, it lets your body know that it is time for bed so that you can fall asleep more easily.
While melatonin supplements are growing in popularity, they are not a cure-all for sleep difficulties. Before taking melatonin, it is important to understand how it works and when it is most likely to be beneficial. Melatonin supplements may help some people fall asleep more easily, but they are not the first-line treatment for sleep disorders. For example, melatonin is not typically prescribed as the sole treatment for insomnia, but it may be used alongside other therapies to reduce the amount of time it takes to fall asleep. Similarly, while melatonin supplements may help people with delayed sleep-wake phase disorder fall asleep earlier, they are not the primary treatment recommendation.
Additionally, melatonin is rarely the right choice for children under the age of five, as their sleep problems are often behavioural and can be resolved by establishing healthy sleep habits and adjusting sleep environments. For older children and adolescents, melatonin may help improve sleep, but there is still much to be learned about its effectiveness and safety in this age group.
Furthermore, melatonin may have side effects and interact with certain medications. For instance, melatonin may interact with alcohol, and there is uncertainty about its effects on hormonal development. Melatonin supplements are also not recommended for people with certain medical conditions, such as epilepsy, seizure disorders, or depression.
Overall, while melatonin can be a helpful tool for improving sleep, it is not a cure-all for sleep difficulties. It is important to understand how melatonin works, consult with a healthcare provider, and address the underlying causes of sleep issues whenever possible.
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Melatonin supplements are rarely the right choice for children under 5
Melatonin is a hormone that is produced naturally by the body. It is often referred to as the "sleep hormone" because it helps regulate the body's sleep-wake cycle or circadian rhythm. Typically, the body starts to release melatonin about one to three hours before bedtime, promoting a state of quiet wakefulness that helps prepare the body for sleep.
While melatonin is produced naturally by the body, melatonin supplements are also available. These supplements provide the body with additional melatonin, which can help some people fall asleep faster and improve sleep quality. Melatonin supplements are growing in popularity, with nearly two-thirds of American adults having tried them. While generally considered safe for short-term use in most people, melatonin supplements are not recommended for everyone. For example, pregnant or breastfeeding individuals, and those with certain medical conditions, are advised to avoid melatonin supplements.
The safety of melatonin supplements for children is a particular area of concern. While melatonin may help children fall asleep and sleep for longer, it is rarely the best option for children under five. Sleep problems in this age group are often behavioural and can be resolved by establishing healthy sleep habits and creating a sleep-conducive environment. Melatonin supplements should not be used to enhance sleep in children who do not have sleep problems or to force them to go to bed earlier.
Furthermore, there is limited data on the safety and effectiveness of melatonin for young children. Melatonin supplements may affect hormonal development, including puberty and menstrual cycles, but more research is needed to understand the potential risks. As such, parents should always consult a paediatrician before giving melatonin to a child, even for teens. It is also important to keep supplements out of the reach of children, as the number of overdose calls to poison control has increased significantly due to their appealing gummy form.
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Frequently asked questions
Melatonin is a hormone that is produced naturally by the body to regulate the sleep-wake cycle. It is often called the "sleep hormone" as high levels can help you fall asleep.
Melatonin supplements give your body extra melatonin, which can help some people fall asleep. It is important to note that melatonin itself does not make you sleep, but it puts you into a state of quiet wakefulness that helps promote sleep.
Melatonin supplements are generally safe for adults experiencing insomnia, jet lag, or delayed sleep phase syndrome. It is important to consult a doctor before taking melatonin, especially if you are taking medication or have certain health conditions. Melatonin should not be used by pregnant or breastfeeding women.
It is recommended to start with a low dose of melatonin, such as 0.5 to 1 milligram, 30 minutes before bedtime. If that does not help you fall asleep, you can gradually increase the dose to a maximum of 5 milligrams. Short-term use of one to two months is generally considered safe, but long-term use has not been extensively studied.
