Mass General Brigham researchers identified seven molecules in the blood linked to excessive daytime sleepiness, including factors related to diet and hormones. Key takeaways:Researchers from Mass General Brigham identified seven blood metabolites linked to excessive daytime sleepiness, highlighting influences from both internal processes (hormones) and external factors (diet). Mass General Brigham researchers identified seven molecules in the blood, known as metabolites, linked to excessive daytime sleepiness, including factors related to diet and hormones. Metalobites Linked to EDSThey identified seven metabolites—some endogenously synthesised and some obtained from diet—associated with excessive daytime sleepiness. Omega-3 and omega-6 fatty acids, commonly found in foods that make up Mediterranean-like diets, were associated with a lower risk of excessive daytime sleepiness.