In some cases, difficulty falling asleep, whether it's an inability to fall asleep quickly or, on the contrary, sleeping too long, can be a precursor to a much more serious health problem, according to Donald Grant, the senior physician at The Independent Pharmacy.
Among the possible causes of sleep problems, he named elevated cholesterol levels.
The specialist said that often difficulty falling asleep or sleeping unusually long hours can indicate a dangerous condition of elevated cholesterol, showing up as one of the early signs of a problem.
According to him, when a person has high cholesterol, changes can occur in the body, including those that affect sleep.
The presence of such symptoms does not necessarily indicate a problem with cholesterol levels, but people who have difficulty sleeping are recommended to see a doctor and undergo medical examinations.