Publications by authors named "Anne-Marie Chang"
Introduction: Prior studies have examined the cross-sectional relationship between adolescent sleep and substance use; however, fewer have explored the long-term connections between childhood sleep and adolescent substance use.
Methods: This study investigated both cross-sectional associations during adolescence and prospective associations between childhood weeknight sleep and later alcohol and marijuana use in the Future of Families and Child Wellbeing Study, a diverse national birth cohort of urban children from 20 cities with populations greater than 200,000. Parents reported their child's bedtime at ages 3, 5, and 9 and their child's sleep duration at ages 5 and 9.
Article Synopsis
- A group of experts met online to decide if using screens, especially before bed, is bad for sleep in kids, teens, and adults.
- They looked at lots of studies and found that screens do hurt sleep, particularly for children and teenagers.
- They agreed that certain behaviors and strategies can help lessen the negative effects of screen time on sleep.
Article Synopsis
- The study investigates cognitive complaints associated with endocrine therapy (ET) for breast cancer treatment and the factors behind them, implementing a comprehensive assessment protocol using wearable devices and surveys.
- Twenty-seven newly diagnosed female breast cancer patients participated in the study, completing five measurement bursts over several months, but the consent rate was low at 36%, with most withdrawals occurring before the midpoint.
- The findings suggest that while many women feel overwhelmed by their diagnosis, there were no notable demographic or clinical differences between those who completed the study and those who withdrew, highlighting the need for more effective support and monitoring during cancer treatment.
Article Synopsis
- The study investigates how different sleep dimensions, measured using actigraphs, impact the academic performance of adolescents, revealing mixed findings about sleep duration.
- Research involving nearly 800 diverse teens found that later sleep times and greater variability in sleep patterns are linked to poorer academic outcomes, including lower GPAs and increased likelihood of disciplinary actions at school.
- The results suggest that maintaining consistent and adequate sleep schedules could enhance academic success for adolescents.
Purpose: To determine the micro-longitudinal effects of duration and timing of screen-based activities on sleep within and between adolescents.
Methods: Daily survey and actigraphy data from the age 15 wave of the Future of Families and Child Wellbeing Study were analyzed using multilevel modeling. Four hundred seventy five adolescents provided three or more days of valid daily survey and nighttime sleep data.
Article Synopsis
- The study aimed to investigate whether aldosterone secretion has a circadian rhythm independent of the sleep/wake cycle, given that urine output and various hormones display daily variations.
- Ten healthy participants followed a strict 57.3-hour protocol that included both sleep and wake periods, with blood samples taken every 4 hours to measure aldosterone levels.
- Results showed a clear circadian rhythm in aldosterone secretion, being higher at the end of the biological night and lower at the end of the biological day, confirming that both circadian rhythm and sleep/wake cycle influence aldosterone levels.
Objectives: Short sleep duration is associated with poor physical health in college students. Few studies examine the effects of sleep extension on physical health in this population, who are susceptible to sleep loss. We examined health effects of a 1-week, 1-hour nightly sleep extension in college students.
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- The study aimed to see how different light conditions and sleep schedules impact the body’s natural circadian rhythm after advancing sleep by 8 hours.
- Forty-three participants followed an 8-day inpatient program with five different lighting and sleep shift conditions, which included gradual and sudden adjustments.
- Results showed that the combined use of higher illuminance white and green light with a modified shift led to the greatest advancements in melatonin onset and improved sleep quality compared to other methods.
Article Synopsis
- The study investigates how sleep quality affects depressive symptoms, diabetes distress, and diabetes management self-efficacy in adolescents and young adults with type 1 diabetes over time.
- Using data from a randomized trial of 60 participants, researchers conducted cross-lagged analyses to observe associations between these factors at multiple time points.
- Findings revealed that poorer sleep quality at the start predicted higher depressive symptoms and lower self-efficacy related to diabetes management in the following months, emphasizing the importance of addressing sleep issues in diabetes care.
Article Synopsis
- Researchers developed a sleep/wake classifier using actigraphy data from ActiWatch Spectrum devices, which effectively operates without needing to know the specific in-bed timing during free-living scenarios.
- The classifier, based on a temporal convolutional network (a type of deep learning model), performed as well or better than existing algorithms like the Oakley classifier when evaluated over 24-hour periods and within specific in-bed intervals.
- However, when tested on a separate dataset (Multi-Ethnic Study of Atherosclerosis), the classifier's performance dropped significantly, particularly when focused only on in-bed times.
Purpose: Poor sleep health is associated with lower positive mood in adolescents, and more variable sleep is associated with more negative mood. There is a lack of research on the associations between sleep variability and positive mood in adolescents. We investigated whether several types of sleep variability, measured with actigraphy, were associated with positive mood reported on a daily diary in adolescents.
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- Sleep restriction was found to lower daytime heart rate (HR) during the initial phase but led to increased HR and systolic blood pressure (SBP) during recovery sleep.
- The study involved 15 healthy young men undergoing an 11-day protocol consisting of baseline, restricted, and recovery sleep phases while measuring their HR and BP every two hours.
- Results indicated that HR and SBP did not return to baseline levels after recovery sleep, implying that extended recovery may be needed to fully compensate for the effects of sleep loss.
Purpose: The goal of this study was to evaluate the relationships of actigraphic nighttime sleep duration and quality with next-day mood among urban adolescents using a micro-longitudinal design.
Methods: A subsample (N = 525) of participants from the Fragile Families & Child Wellbeing Study (mean age: 15.4 years; 53% female; 42% Black non-Hispanic, 24% Hispanic/Latino, 19% White non-Hispanic) in the United States between 2014 and 2016 concurrently wore a wrist actigraphic sleep monitor and rated their daily mood in electronic diaries for about 1 week.
Article Synopsis
- Sleep loss negatively impacts both physical and mental health, with specific concerns about how reduced sleep affects working memory and force control.
- A study involving 14 men examined the effects of sleep restriction on their ability to produce force, using both visually guided and memory-guided tasks over an eleven-day period.
- Results indicated that sleep restriction impaired visually guided force production, while memory-guided tasks remained relatively unaffected; additionally, feelings of alertness influenced performance in memory-guided tasks.
Background: Poor self-reported sleep health has been linked to not consuming breakfast in adolescents, but it is unknown whether poor sleep measured objectively predicts next-day breakfast consumption within adolescents. We investigated within- and between-person associations of objectively measured sleep dimensions and subjective sleep quality with adolescent breakfast consumption.
Methods: Data were collected from a micro-longitudinal substudy of the Year 15 wave of the Fragile Families and Child Wellbeing Study (n = 590).
Article Synopsis
- * A study involving 589 adolescents used actigraphy devices to objectively measure sleep patterns and daily surveys to assess caffeine consumption over a week, revealing that variability in sleep duration and timing correlated with higher caffeine intake.
- * The findings indicate that after consuming caffeine, adolescents tend to have later bedtimes and wake times, suggesting that reducing caffeine might help improve their sleep schedules and overall sleep quality.
We investigated whether interindividual attentional vulnerability moderates performance on domain-specific cognitive tasks during sleep restriction (SR) and subsequent recovery sleep. Fifteen healthy men (M ± SD, 22.3 ± 2.
View Article and Find Full Text PDFPurpose: The effects of sleep restriction on subjective alertness, motivation, and effort vary among individuals and may explain interindividual differences in attention during sleep restriction. We investigated whether individuals with a greater decrease in subjective alertness or motivation, or a greater increase in subjective effort (versus other participants), demonstrated poorer attention when sleep restricted.
Participants And Methods: Fifteen healthy men (M±, 22.
Background: Secondhand smoke exposure has been cross-sectionally associated with worse sleep health outcomes in children and shorter sleep duration in adolescents.
Objectives: We assessed longitudinal and cross-sectional associations between secondhand smoke (SHS) exposure and shorter sleep duration in children from the Fragile Families and Child Wellbeing Study, a longitudinal birth cohort. We additionally examined whether associations would persist after controlling for potential confounders.
Stroke survivors encounter various physical and psychosocial challenges after hospital discharge. Systematic reviews consistently suggest the importance of self-management in promoting post-stroke recovery. However, stroke survivors' performance of self-management behaviors after returning home is poorly understood.
View Article and Find Full Text PDFObjective: To investigate sleep disturbances and circadian timing changes on functional and physiological correlates specifically in collegiate athletes.
Design: Scoping Review.
Data Sources: PubMed MEDLINE, SPORT-Discus, CINAHL, ERIC ProQuest, Web of Science.
Article Synopsis
- A study found that social jetlag (discrepancy between biological and social clock) is linked to eating habits and body mass index (BMI) in adolescents, highlighting a research gap in this area.
- Analysis of responses from 3060 adolescents showed that greater social jetlag was related to lower breakfast and fruit/vegetable consumption, while increasing fast food and sweetened drink intake.
- While social jetlag was associated with higher BMI, this connection weakened when accounting for race/ethnicity, suggesting these factors may influence the relationship and should be explored in future research.
Job discrimination, a social stressor, may lead to sleep health disparities among workers; yet, limited research has examined this relationship and specific sources of job discrimination. We used a US sample of working women (n = 26,085), participants in the Sister Study (2008-2016), to examine the associations of perceived job discrimination due to sex, race, age, health conditions, and/or sexual orientation with sleep health. Cross-sectionally, linear or logistic regression models revealed that each source of job discrimination was independently associated with different sleep problems after controlling for other sources of job discrimination.
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