Exercise affects sleep outcomes in research

Lu Y, Zhang C, Wang W, Lv X, Yang H, Ma Y, Cao J, Huang Y, Mi W · Frontiers in public health (2026)

Result: A nationwide cross-sectional survey of 30,255 Chinese anesthesiologists found that sleep quality was significantly associated with resignation intention. The study identified sleep quality as one of several factors linked to intention to leave the profession, alongside service years, weekly work hours, daily anesthesia caseload, annual income, smoking, alcohol, and exercise frequency.

Leng J, Yu J, Li Z, Zhang Y, Cui J · Frontiers in physiology (2026)

Result: Caffeine is a well-established ergogenic aid that enhances performance primarily through antagonism of central adenosine A1 and A2a receptors. The most robust and consistent benefits are observed for aerobic endurance exercise, with effects on strength and power being more variable.

Jiang Q, Chen XS, Patel D, Brazendale K, Alejandro S · JMIR pediatrics and parenting (2026)

Result: This scoping review of 14 studies found that AI-enabled chatbot interventions for pediatric physical activity and obesity-related behaviors are a rapidly emerging field, with most studies published since 2023. Among 8 studies reporting direct physical activity or fitness outcomes, 4 showed significant improvement, 2 found no significant change, and 2 reported mixed or indirect findings. Family involvement was present in 71.4% of studies, and feasibility and acceptability were generally favorable.

Bratteteig M, Grydeland M, Anderssen SA, Ruud E, Torsvik IK, Thorsen L, Fridh MK, Järvelä L, Götte M, Hansen BH, Zürcher SJ, Kriemler S, Perrier F, Rueegg CS · Journal of cancer survivorship : research and practice (2026)

Result: The study identified four weekly physical activity trajectories among adolescent and adult childhood cancer survivors using accelerometer data. Key factors associated with different trajectories included sex, age, sleep, and parental education, with diagnosis important only in adolescents. Adolescent survivors had fewer individuals in the low activity trajectory compared to controls, while adult survivors showed no low regular MVPA trajectory.

Li Y, Liang J, Ma J, Jia Z, Li X, Su Q · Frontiers in public health (2026)

Result: A cross-sectional study of 9,122 university students found that poor sleep was the strongest independent predictor of both MSP prevalence (OR=2.81, 95% CI: 2.26-3.49) and pain burden (OR=3.72, 95% CI: 2.86-4.83). MSP prevalence was 58.7%, with neck, back, and shoulders most affected.

Osorio E, Ramírez B, Herrera O, Suarez C, Ciro C, Varela A · Plastic and reconstructive surgery. Global open (2026)

Result: A retrospective cohort study of 199 female patients undergoing the 3-flap technique for biopolymer removal reported statistically significant improvements in well-being indicators, including sleep quality. The study found that postoperative symptom resolution included reductions in myalgia (OR 0.15), asthenia (OR 0.03), and anxiety (OR 0.08), with sleep quality also improving as a secondary outcome.

Merellano-Navarro E, Loyola-Arriagada P, Moran-Toloza A, Bruneau-Chávez J, Giakoni-Ramírez F, Gajardo-Herrera D, Pena-Rojas J, Godoy-Cumillaf A · Frontiers in public health (2026)

Result: In a cross-sectional study of 168 physically active physical education teacher education students in Chile, depressive symptoms were negatively associated with both the physical component summary (PCS) and mental component summary (MCS) of HRQoL, with stronger associations for MCS. The model explained 61% of variance in MCS but only 6% in PCS, indicating mental health symptoms are more strongly linked to HRQoL than physical activity in this sample.

Do A, Kachichian R, Vincent P · Sante mentale au Quebec (2026)

Result: A patient developed probable serotonin syndrome (SS) within hours of adding 100 mg trazodone to a regimen including lurasidone and valproic acid. Symptoms included chills, nausea, sweating, dizziness, muscle stiffness, and tremor, which resolved over 48 hours. The case suggests that this drug combination can cause excessive serotoninergic activity via multiple mechanisms.

Sargeant MM, Jordan EW, Uzunoglu E, Barwick E, Jollay-Castelblanco P, King B, Martin C, McCrary S, Bates M, Degner BC, Sears SF · Patient education and counseling (2026)

Result: In a survey of 106 patients with thoracic aortic aneurysm, over 80% endorsed sleep management programs as helpful. However, only a minority indicated willingness to attend such programs, with distance (43%) and time (36%) being the most common barriers.

Tseng YL, Chen KM, Wu MH, Liu J, Liang YC, Moyle W · Asia-Pacific journal of public health (2026)

Result: This quasi-experimental study found that an 8-week multicomponent group exercise program significantly improved gait speed, upper limb muscle strength, sleep quality, and heart rate recovery in the intervention group compared to baseline. Between-group posttest comparisons showed significant differences in arm curls, grip strength, and sleep quality favoring the intervention group.

Zhou J, Wei J · Frontiers in public health (2026)

Result: This narrative review of 11 studies proposes that sport-related activities (participatory and spectator-based) can aid mental health recovery after natural disasters by modulating the HPA axis, restoring self-efficacy, and rebuilding social networks. The evidence is observational and heterogeneous, so causal effects cannot be established.