Do Diabetes and Obesity Medications Increase Excessive Sleepiness?

A recent analysis reveals that medications used to treat type 2 diabetes and obesity may promote excessive sleepiness in some patients. These treatments, which work by mimicking a natural hormone that regulates blood sugar and appetite, are increasingly prescribed for their metabolic and cardiovascular benefits. However, their impact on sleep remains poorly understood.

The study followed more than 118,000 adults aged 18 to 50 with diabetes or obesity. The results show that individuals taking these medications have an increased risk of daytime sleepiness after one year and up to five years of treatment. This additional risk remains moderate, with an absolute increase of less than 1% over five years. Additionally, iron deficiency was also observed more frequently after five years among users of these treatments.

These medications influence areas of the brain involved in sleep and wakefulness regulation. They may disrupt the activity of specific neurons that normally maintain wakefulness, which could explain the increased sleepiness. However, no significant link has been established with other sleep disorders such as parasomnias, narcolepsy, or restless legs syndrome.

Researchers emphasize that while these side effects are real, they must be weighed against the recognized benefits of these treatments. They encourage careful monitoring of patients, especially those already prone to sleep problems. These findings pave the way for further research to better understand the mechanisms at play and adapt patient management.

Our References

Original Reference

DOI: https://doi.org/10.1007/s40200-026-01929-0

Title: Association of GLP-1 Receptor Agonist Use with Hypersomnolence: A Real-world Cohort Analysis

Journal: Journal of Diabetes & Metabolic Disorders

Publisher: Springer Science and Business Media LLC

Authors: Louie Kamel-Abusalha; Ahmed M. Afifi; Abdallatif Dawoud; Zumair Hayath; Muhammad Fouad Bouso; Andre Aguillon; Ragheb Assaly