Related Experiment Video
Updated: May 22, 2026
04:33
Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder
Published on: April 26, 2024
[Quality of sleep in students]
Alina Micu1, Cristian Cojocaru, Gianina Luca
1Spitalul Clinic Judeţean de Urgenţe Sfântul Spiridon Iaşi, Clinica I Oftalmologie, Iaşi.
Pneumologia (Bucharest, Romania)
|May 2, 2012
Summary
Medical students often experience poor sleep quality. This study found that stimulants like coffee and energy drinks significantly fragment sleep, impacting learning and daytime alertness.
Area of Science:
- Medical Education
- Sleep Science
- Lifestyle Medicine
Context:
- Sleep quality is crucial for student learning.
- Young medical students frequently report sleep issues.
- This study investigates lifestyle factors affecting sleep in medical students.
Purpose:
- To examine the relationship between lifestyle factors (e.g., stimulant intake) and sleep quality in medical students.
- To assess sleep patterns using polysomnography, sleep diaries, and questionnaires.
- To correlate self-reported sleep issues with objective sleep data.
Summary:
- Polysomnography, sleep diaries, and the Epworth questionnaire were used with 28 medical students.
- A significant correlation was found between stimulant intake (coffee, energy drinks, tea, alcohol) and sleep fragmentation.
- Excessive daytime somnolence did not align with polysomnography findings but correlated with poor sleep habits and stimulant use.
Impact:
- Highlights the negative impact of psychical excitants on medical student sleep quality.
- Suggests that poor sleep habits and stimulant consumption contribute to fragmented sleep and daytime sleepiness.
- Informs interventions aimed at improving sleep hygiene and academic performance in medical students.
Related Concept Videos
01:24Substance Use Disorders Affecting Sleep
Substance use disorders involve a pattern of using drugs more extensively than intended and continuing use despite harmful consequences. This includes legal substances like alcohol and nicotine, as well as illegal drugs. These disorders often involve both physical and psychological dependence, reflecting compulsive use of substances that significantly alter thoughts, feelings, and behaviors, contributing to a major public health issue.
Understanding the concepts of physical dependence,...
Understanding the concepts of physical dependence,...
01:13Insufficient Sleep and Sleep Deprivation
Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
Sleep deprivation is a more severe form of sleep loss...
Sleep deprivation is a more severe form of sleep loss...
01:11Understanding Sleep
Sleep, an essential biological state, involves significant reductions in physical activity, sensory awareness, and interaction with the environment. This complex physiological process is primarily regulated by specific brain regions, notably the hypothalamus and pons, which govern the sleep-wake cycle or circadian rhythm.
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
01:24Sleep-Wake Cycles
Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and rapid eye movement (REM).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
01:19Management of Insomnia
The sleep cycle, an integral part of human health, consists of several stages with distinct characteristics and functions. It begins with a transition from wakefulness to sleep, known as the light sleep phase, followed by the restorative deep sleep phase, essential for physical recovery and growth. The cycle concludes with the Rapid Eye Movement (REM) phase, characterized by high brain activity and vivid dreaming. Insomnia, a prevalent sleep disorder, involves difficulty falling asleep, staying...
02:07Blind Procedures
Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which child was...