Melatonin Use Linked to Cardiovascular Issues in new Study
NEW YORK (AP) – A new study is raising concerns about the potential cardiovascular effects of melatonin, a widely used over-the-counter sleep aid. Researchers found individuals with higher levels of melatonin in their bloodstreams exhibited a significantly increased risk of cardiovascular disease, prompting calls for further examination into the long-term effects of the supplement.
The study, conducted by researchers from SUNY Downstate Health Sciences University, analyzed data from over 22,000 participants and revealed those with the highest melatonin levels had a 53% increased risk of cardiovascular disease compared to those with the lowest levels. While the findings don’t prove melatonin causes heart problems,they highlight a correlation that warrants closer scrutiny,particularly given the supplement’s growing popularity.
melatonin is naturally produced by the body to regulate sleep,but is also commonly taken as a supplement to address insomnia,jet lag,and othre sleep disturbances. It’s readily available over-the-counter in the United States, unlike some other countries where a prescription is required. This accessibility, coupled with increasing stress and sleep disruptions, has led to a surge in melatonin use.
however, experts caution against drawing definitive conclusions. Northwestern University cardiology chief Dr. Clyde Yancy, who was not involved in the study, pointed out that the research didn’t account for dosage or whether participants were using melatonin under a doctor’s guidance. “Americans in the study might have used the supplements without it being recorded,” he said.
Furthermore, the quality and ingredients of melatonin supplements can vary significantly, as they aren’t subject to strict government approval in the U.S. Emory University’s Dr. Sandesara recommends patients discuss melatonin use with their doctors, noting it’s generally advised for short-term issues like jet lag.
Dr.Yancy emphasized that the study doesn’t demonstrate a danger from long-term melatonin use, but also stated there’s currently no evidence supporting indefinite use. He added that prioritizing good “sleep hygiene” – such as ensuring a dark bedroom and limiting exposure to blue light from screens at night – remains a key strategy for better sleep. ”When we expose ourselves to blue light in particular at night, we are diminishing our melatonin levels. That’s science,” he said. “Sleep problems aren’t about ‘just being sleepy and tired – they’re putting yourself at risk.'”
The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.