Study links endocrine-disrupting chemical exposure to poorer sleep and vitamin D deficiency

By Dr. Chinta SidharthanApr 30 2024Reviewed by Benedette Cuffari, M.Sc. In a recent study published in the journal Nutrients, researchers investigate whether exposure to endocrine-disrupting chemicals in the environment contributes to vitamin D deficiency and has a negative impact on sleep duration.

Bisphenol A and phthalates, which are common EDCs used for human activities, have been shown to affect sex hormone levels and influence the hypothalamic-pituitary-adrenergic axis, thus leading to a wide range of sleep disorders. Alterations in sleep quality and duration can increase the risk of metabolic disorders such as diabetes, obesity, cardiovascular disease, immunological and neurological problems, as well as mental health disorders such as anxiety.

Study participants were recruited among individuals registered in the United States National Health and Nutrition Examination Study, which evaluates the nutrition and health of the overall population through surveys. Related StoriesThe Munich Chronotype Questionnaire was used to obtain data on sleep duration. Additionally, blood samples from all the participants were used to determine the serum vitamin D levels through liquid chromatography and mass-spectrometry methods.

Individuals who were deficient in vitamin D experienced shorter sleep durations after exposure to triclosan as compared to those with normal vitamin D levels. Exposure to benzophenone-3 and mono- phthalate was also associated with low vitamin D levels.

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