🧠 Brief Summary
A recent medical study showed an association between long-term use of the melatonin supplement (melatonin) and an increased risk of heart failure (heart failure) and its emergency treatments, in addition to higher mortality rates among people with chronic insomnia. Although the findings do not prove that melatonin is the direct cause, they raise important questions about the safety of using this supplement continuously, which is usually seen as a safe and natural option for improving sleep.
🧬 Melatonin and Its Role in Regulating Sleep
Melatonin is a hormone naturally produced by the pineal gland in the brain, and it works to regulate the body’s biological clock, or what is known as circadian rhythm. The level of this hormone rises with darkness and falls during the day, helping to regulate the sleep-wake cycle.
Melatonin is considered a widely used supplement worldwide, as it is used as a common treatment for insomnia (insomnia) and circadian timing disorders such as jet lag (jet lag). It is sold in many countries without a prescription, although the quality and concentration of supplements vary by brand.
🩺 Recent Study on Long-Term Melatonin Use and Heart Risk
A research team analyzed medical data for more than 130,000 adults suffering from chronic insomnia, and they were classified into two groups: melatonin users for a period of not less than one year, and non-users of this supplement.
The researchers excluded from the study those who had previously suffered from heart failure or who had taken other sleep medications such as benzodiazepines, to increase the accuracy of the comparison between the two groups.
🌱 Key Findings of the Study
- The likelihood of developing heart failure increased by about 90% among melatonin users compared with others over the five-year period following their entry into the study.
- The rate of heart failure was 4.6% in the melatonin-use group versus 2.7% in the non-user group.
- Among those who filled at least two melatonin prescriptions separated by 90 days or more, the data showed an increase in risk of up to 82%.
- The hospitalization rate due to heart failure in the melatonin group was much higher, reaching 19.0% compared with 6.6% in the control group.
- Within 5 years, 7.8% of melatonin users died compared with 4.3% of non-users, which is roughly equivalent to double the risk of death.
🧪 Interpretation of the Results and the Reason for Concern
Melatonin primarily helps regulate the daily rhythm of sleep and wakefulness, but its potential effect on the cardiovascular system with long-term use is still not fully understood. This study did not prove a cause-and-effect relationship, but it pointed to a strong association between continued melatonin use and increased risks of heart failure and its complications.
The limitations faced by the study include the variation in melatonin dispensing systems worldwide, as it is dispensed by prescription in some countries, while in others such as the United States it is dispensed as a dietary supplement. This difference makes classification of users less than 100% accurate.
🧠 Influencing Factors and Important Caveats
Mental health conditions that may accompany insomnia, such as stress, depression, or anxiety, may in turn affect heart health and increase the risk of disease, and may also be linked to melatonin use, making it difficult to separate the effects.
Also, the lack of data on the severity of insomnia or medical causes, and the differences in how use is described and recorded in electronic health records, pose a challenge.
🧬 The Importance of the Research in the Context of Public Health
Chronic insomnia is a common problem among millions and pushes many people to seek natural solutions or supplements to improve sleep quality. Melatonin is widely used as relatively safe, so these findings have sparked renewed debate about how safe it is over the long term.
The researchers confirm that these findings do not mean melatonin should be stopped immediately or that patients with insomnia should no longer be advised to use it, but they call for reevaluating long-term use and seriously considering monitoring cardiovascular effects in regular users.
🩺 Scientific Recommendations and Future Prospects
The researchers stress that more studies are necessary to better understand the relationship between melatonin and heart health, especially studies that avoid misleading results caused by external factors such as mental disorders or the use of other medications.
Scientific bodies also advise against excessive long-term use of melatonin without proper medical supervision, especially because most use in some countries takes place without a prescription or close medical monitoring.
This research may influence changes in recommendations regarding melatonin supplements and encourage the development of new guidelines that take into account the potential risks to the heart.
🌱 Final Conclusion
The association of long-term melatonin use with an increased risk of heart failure and death presents a new challenge to understanding the safety of common supplements. Amid rising rates of melatonin use among people with insomnia, it becomes necessary to recognize that “natural” or “safe” is not always free of risk, and caution should be taken with chronic use.
📚 Related articles
Discover more from Mohdbali
Subscribe to get the latest posts sent to your email.
