Publications by authors named "Sergio Arthuro Mota-Rolim"
Objective: Medical students are especially vulnerable to situations of poor sleep quality due to academic demands. The COVID-19 pandemic brought significant changes and high psychological stress, causing a great impact on this population. Here we aim to analyze the influence of the pandemic on the sleep quality of medical students.
View Article and Find Full Text PDFArticle Synopsis
- The COVID-19 pandemic has led to changes in lifestyle and work habits, impacting sleep timing and potentially increasing the risk of insomnia symptoms.
- In a survey of nearly 15,000 participants across 14 countries, researchers analyzed the relationship between social jetlag (the difference in sleep timing on work vs. free days) and insomnia symptoms, controlling for various confounding factors.
- Results showed that both increases and decreases in social jetlag were linked to later sleep times and higher rates of insomnia symptoms, particularly among those who reduced their social jetlag, suggesting that stability in sleep/wake timing is crucial for preventing insomnia.
Study Objectives: Individual circadian type is a ubiquitous trait defining sleep, with eveningness often associated with poorer sleep and mental health than morningness. However, it is unknown whether COVID-19 pandemic has differentially affected sleep and mental health depending on the circadian type. Here, the differences in sleep and mental health between circadian types are examined globally before and during the COVID-19 pandemic.
View Article and Find Full Text PDFChanges in Cortisol but Not in Brain-Derived Neurotrophic Factor Modulate the Association Between Sleep Disturbances and Major Depression.
Front Behav Neurosci
April 2020
Sleep disturbance is a symptom consistently found in major depression and is associated with a longer course of illness, reduced response to treatment, increased risk of relapse and recurrence. Chronic insomnia has been associated with changes in cortisol and serum brain-derived neurotrophic factor (BDNF) levels, which in turn are also changed in major depression. Here, we evaluated the relationship between sleep quality, salivary cortisol awakening response (CAR), and serum BDNF levels in patients with sleep disturbance and treatment-resistant major depression ( = 18), and in a control group of healthy subjects with good ( = 21) and poor ( = 18) sleep quality.
View Article and Find Full Text PDFNightmares are defined as repeated occurrences of extremely dysphoric and well-remembered dreams that usually involve subjective threats to survival, security, or physical integrity. Generally, they occur during rapid eye movement sleep (REMS) and lead to awakenings with distress and insufficient overnight sleep. Nightmares may occur spontaneously (idiopathic) or as recurrent nightmares.
View Article and Find Full Text PDF