Which biological mechanism primarily links vitamin D deficiency to sleep-related breathing disorders such as snoring and obstructive sleep apnoea?

By Rabia Anum

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Last Updated 13 Aug 2026

A. Hypercalcemia-induced airway constriction

B. Impaired neuromuscular control and muscle performance

C. Increased production of melatonin in the pineal gland

D. Direct blockage of the nasal passage by vitamin deposits

📚 Topics: International Current Affairs

🎯 Exams: CSS GEN NTS PMS

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