Background Loss of muscle mass, muscle strength, and/or physical performance due to
aging is known as sarcopenia. Regardless of how serious this illness is, no single diagnostic …

Purpose Obstructive sleep apnea (OSA) is a chronic, sleep-related breathing disorder which
leads to increased cardiovascular risks. Vitamin D deficiency is associated with various …

Objectives This study aimed to evaluate the association of vitamin D with sleep quality
during the COVID-19 pandemic and the influence of daily sunlight on this association …

To evaluate association of vitamin D with sleep quality in adults and the influence of VDR-
gene polymorphism FokI (rs2228570; A> G). Cross-sectional population-based study in …

Objective The prospective association between vitamin D and obstructive sleep apnea
(OSA) remains uncertain. We aimed to assess the association between serum 25 …

Background: Poor sleep quality is a common problem in the general population that affects
the quality of life of individuals. Aim: This systematic review aimed to determine the effect of …

Background Although an increased risk of coronary heart disease (CHD) has been reported
in individuals with low vitamin D status, this remains controversial. Growing evidence …

Despite the high prevalence and significant health burden of obstructive sleep apnea (OSA),
its underlying pathophysiology remains incompletely understood. This comprehensive …

Over the past few years, there has been a surge in interest regarding the connection
between sleep duration and quality, sleep disorders, mainly Obstructive sleep apnoea …

Purpose Obstructive sleep apnea (OSA) and the metabolic syndrome (MetS) frequently
coexist. Low serum vitamin D has been positively associated with OSA presence and …