October 26, 2026 · Sports, Health & Nutrition Daily Digest
A digest of sports, fitness, health, and nutrition developments compiled for October 26, 2026, with summaries, links, and commentary.
I. Nutrition and Diet
1. npj Science of Food: Nighttime eating and a longer eating window tracked worse memory, and the public abstract does not give a sample size (Nutrition)
Summary:
Yan Deng of the First Affiliated Hospital of the University of Science and Technology of China, Jiahui Yu of Wuhan University of Science and Technology, and corresponding author Shuang Rong published on October 23 in npj Science of Food. Chrono-nutrition behaviors came from validated questionnaires, global and domain cognition from a neuropsychological battery, and linear and logistic models were corrected for the false discovery rate. More eating occasions and more snacks tracked worse global cognition and poorer memory. Nighttime eating was associated with memory at β = −0.21 (95% CI −0.33 to −0.09, FDR-P = 0.004), and a prolonged eating window at β = −0.29 (−0.38 to −0.21, FDR-P < 0.001). Longer evening latency tracked better global cognition and memory (β = 0.28, 0.19 to 0.38, FDR-P < 0.001); longer morning latency tracked worse global cognition and attention, and the abstract gives no coefficient for that term. The public abstract does not state the sample size, the age range, or whether the design was cross-sectional or longitudinal. National Natural Science Foundation of China grant 82674636.
Links:
Commentary:
Night eating and a long eating window are the two habits tied here to memory coefficients of −0.21 and −0.29; without a sample size or a stated design, those coefficients do not set a clock time to stop eating.
2. Nutrition Journal: In 19,655 UK Biobank participants, the plasma-protein signature of a vegetable-based low-carbohydrate diet had a cardiovascular hazard ratio of 0.77, while the total and animal-based signatures did not (Nutrition)
Summary:
Lu Xu, Huiping Li, and Mingya Zhang of Northwest University, with Jiayou Tang of Xijing Hospital, published a cohort analysis on October 22 in Nutrition Journal. Among 19,655 UK Biobank participants with complete diet and proteomic data, low-carbohydrate scores used the percentage of energy from carbohydrate, fat, and protein on 24-hour recalls, and elastic net with repeated nested cross-validation derived proteomic signatures. Over a median 11.6 years, 1,506 incident cardiovascular events occurred. The signatures contained 405, 173, and 367 proteins for total, vegetable-based, and animal-based low-carbohydrate patterns. Hazard ratios for the highest versus lowest quartile were 0.98 (95% CI 0.84–1.14) for the total signature, 0.77 (0.66–0.91) for the vegetable-based signature, and 0.96 (0.83–1.12) for the animal-based signature. The reported results are for protein signatures, not for the dietary score itself. Ethics reference 21/NW/0157.
Links:
Commentary:
The 0.77 hazard ratio belongs to a 173-protein signature of a vegetable-based low-carbohydrate pattern, highest versus lowest quartile; the total and animal-based signatures were not separated from 1, so eating fewer carbohydrates is not itself a measured 23% drop in cardiovascular events.
II. Exercise and Training Science
3. Journal of Functional Morphology and Kinesiology: After 12 weeks of machine resistance work in 60 adults aged 60–75, inspiratory and expiratory pressure showed group-by-time interactions, and exercise-related oxygen saturation did not differ between groups (Training)
Summary:
Naiara Nadia Moreira-Silva and Meiry Souza Moura-Maia of the Evangelical University of Goiás, with corresponding author Rodolfo P. Vieira, published a randomized trial on October 19. Sixty of 80 recruited community-dwelling adults enrolled: 30 controls (69.46 ± 6.42 years; 10 men, 20 women) did no exercise, and 30 trained (67.70 ± 6.08 years; 9 men, 21 women). Training was three sessions a week for 12 weeks, about 60 minutes, seven machine exercises, and, after familiarization, four sets of 8–15 repetitions at about 65% of baseline one-repetition maximum, with 1–2 minutes between sets. The primary outcomes were maximal inspiratory and expiratory pressure. Group-by-time interactions were F(1,58) = 10.95, P = 0.002, partial η² = 0.159 for inspiratory pressure, and F(1,58) = 7.10, P = 0.010, partial η² = 0.109 for expiratory pressure. The one-minute sit-to-stand change differed by 8.03 repetitions (95% CI 2.19–13.86), but the training group started lower, and the baseline-adjusted difference was 4.71 repetitions (−0.57 to 9.99, P = 0.079). The between-group difference in exercise-related oxygen saturation was +0.43 percentage points (−0.45 to 1.30, P = 0.335). Group-by-time P values were 0.007, 0.001, and 0.002 for IL-6, IL-10, and α-Klotho; the TNF-α interaction was P = 0.057, a difference of −31.20 pg/mL (−64.37 to 1.96). The text does not give the centimeter-of-water or kilogram changes for pressure or grip. Registration NCT06682221; ethics approval 6.095.284. The abstract says training attenuated exercise desaturation; the between-group result does not support that sentence.
Links:
Commentary:
Adults in their sixties who can use machines can train respiratory strength with about 60 minutes, three days a week, near 65% of one-repetition maximum; the extra sit-to-stand repetitions did not remain significant after baseline adjustment, and the abstract's claim of less oxygen desaturation is not the between-group result.
III. Sports Medicine and Injury Prevention
4. Swiss Sports and Exercise Medicine: An October 21 review treats injury prevention as a dosing problem, and movement screens are not validated predictors (Sports medicine)
Summary:
Boris Gojanovic of the Swiss Olympic Medical Center published a review online on October 21 in the society's journal. It synthesizes existing trials rather than reporting a new randomized trial. No clinical movement screen, including the Functional Movement Screen, is described as validated for predicting injury. Hamstring injury accounts for about 24% of time-loss injuries in men's professional football; in the UEFA Elite Club Injury Study (36 clubs, 12 countries, 5,216 player-seasons), time loss from hamstring injury rose 4.1% a year over 13 years. In a cluster-randomized trial of 50 teams, Nordic eccentric hamstring training corresponded to 15 versus 52 total injuries, a number needed to treat of about 3; later meta-analyses diluted the pooled effect, while compliant athletes still showed reductions above 60%. In a three-arm randomized trial, bracing prevented recurrent ankle sprain better than neuromuscular training (relative risk 0.53, 95% CI 0.29–0.97; recurrence 15% versus 27%), and the combined arm at 19% did not beat bracing alone. In a Swedish trial of 230 clubs and girls aged 12–17, ACL injuries fell 64%, and 83% where compliance was high. The review treats a multicomponent warm-up as an exercise prescription with a dose: mixed content, sessions longer than 20 minutes, weekly volume above 30 minutes, started in preseason and continued through the season.
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Commentary:
A preseason movement screen does not identify who will be injured; after a hamstring injury or an ankle sprain, finishing the Nordic and brace doses used in these trials is the step that sits next to the reported counts.
IV. Sleep and Mental Health
5. Journal of the Endocrine Society: Among 678 Japanese outpatients with type 2 diabetes, mean sleep of at least 8 hours carried a nephropathy hazard ratio of 1.92, and the interval for 6 to under 7 hours crossed 1 (Sleep)
Summary:
Fuki Ikeda and Tomoya Mita of Juntendo University published a prospective cohort online on October 8 in the Journal of the Endocrine Society, and Neurology Advisor reported it on October 26. Lifestyle habits were assessed at baseline and at year 2 and/or year 5 in 678 Japanese outpatients with type 2 diabetes, aged 25 to under 70, and averaged until the endpoint or the end of follow-up. Over 6.0 ± 2.7 years, 215 people reached a composite of incidence or progression of diabetic nephropathy. Mean sleep duration was the only lifestyle factor associated with the endpoint. Versus under 6 hours, multivariable hazard ratios were 1.08 (95% CI 0.74–1.57) for 6 to under 7 hours, 1.56 (1.05–2.31) for 7 to under 8 hours, and 1.92 (1.15–3.19) for at least 8 hours, trend P = 0.003. The association was stronger in older participants and in those with microalbuminuria or reduced kidney function. The corresponding author states that the finding is observational and is not a reason to cut sleep. Several authors disclosed ties to biopharmaceutical and medical-technology companies. Funding came from the Manpei Suzuki Diabetes Foundation.
Links:
- Journal of the Endocrine Society — Longer sleep and diabetic nephropathy
- Neurology Advisor — October 26 report on the Juntendo cohort
Commentary:
For type 2 diabetes with microalbuminuria or reduced kidney function, habitual sleep of 8 hours or more is a question for the next kidney or endocrine visit; the hazard ratio for 6 to under 7 hours crosses 1, so the result is not a prescription to sleep less.
6. Sleep Medicine: Among 1,236 Chinese adults with type 2 diabetes and no baseline microvascular complications, composite hazard ratios were 1.71 for under 7 hours and 1.87 for at least 10 hours (Sleep)
Summary:
A prospective cohort by Yanning Zhou and colleagues appeared in Sleep Medicine on October 13, and Review of Optometry reported it on October 26. The Ningbo branch of the National Metabolic Management Center enrolled 1,236 adults with type 2 diabetes and no microvascular complications at baseline between 2018 and 2023. Self-reported sleep, including naps, was grouped as under 7, 7–8, 8–9, 9–10, and at least 10 hours. Over 2,459 person-years, 237 people developed at least one microvascular complication. The composite outcome was U-shaped (P < 0.001), as was diabetic peripheral neuropathy (P = 0.039), with the lowest risk at 7–8 hours. Versus 7–8 hours, the composite hazard ratio was 1.71 (P = 0.018) for under 7 hours and 1.87 (P = 0.005) for at least 10 hours. The journal abstract does not print confidence intervals. Review of Optometry reports no significant association with retinopathy at any of the five durations and no matching U-shape; sleep was self-reported once, at baseline.
Links:
- Sleep Medicine — Sleep duration and microvascular complications in type 2 diabetes
- Review of Optometry — October 26 report on sleep and diabetic eye, kidney, and nerve complications
Commentary:
In this cohort, 7–8 hours was the sleep band with the lowest composite risk, and both short sleep and 10 hours or more sat higher; retinal screening stays on its existing schedule, because retinopathy did not follow that U-shape in the October 26 clinical report.
7. BMC Public Health: In 6,081 UK Biobank participants, each standard deviation of night-to-night sleep variability tracked 0.1444 points lower subsequent fluid intelligence (Sleep)
Summary:
Wei-Meng Cai, Lin Liu, and colleagues published an exploratory cohort on October 22 in BMC Public Health. The sample was 6,081 people with wrist accelerometry and two later cognitive assessments. Exposures were within-person standard deviations of sleep onset, wake time, sleep duration, and movement-defined interruptions, plus an equally weighted composite and a sleep regularity index. At the first follow-up assessment, all four components and the composite tracked lower fluid intelligence; for the composite, β = −0.1444 points per exposure standard deviation (95% CI −0.1970 to −0.0918, q < 0.0001). In longitudinal models, wake-time, duration, and composite estimates were −0.0591, −0.0483, and −0.0506, with 12-test q values of 0.0610, 0.0704, and 0.0704. Added variance beyond the sleep regularity index was at most 0.00079 and did not meet the corrected threshold. Selection-weighted estimates were weaker. The authors state that the results do not establish prediction of cognitive decline or clinical superiority over the sleep regularity index. UK Biobank application 482390.
Links:
Commentary:
Steadier sleep and wake times sit next to about 0.14 points of fluid intelligence at the first later test; the longitudinal estimates are smaller and did not clear multiplicity correction, so the finding does not justify another sleep-regularity score.
8. BMC Public Health: Among 758 undergraduates in Ningxia who completed follow-up, a persistently poor sleep trajectory carried 5.31 times the probable-depression risk of a gradually improving trajectory (Sleep)
Summary:
Zhenchi Niu, Yingli Xu, Long Zhou, and corresponding author Jing Li of Ningxia Medical University published a prospective cohort on October 22 in BMC Public Health. Undergraduates at several Ningxia universities were followed every six months, sleep with the Pittsburgh Sleep Quality Index, and probable depression as a PHQ-9 score of at least 10. A supplement describes the completed sample as 758 people, with 47 non-completers; the sample included minors, with written guardian consent for those minors. Group-based trajectories were persistently poor (24.54%) and gradually improving (75.46%). The poor trajectory had a higher incidence of probable depression, relative risk 5.31 (95% CI 3.51–8.03, P < 0.001). Fatigue (PHQ-4) had the highest strength centrality in both symptom networks. In a computer simulation, guilt (PHQ-6) had the largest predicted effect in the persistently poor group, and sleep disturbance (PHQ-3) produced the largest projected change in total symptom burden in the improving group. Those targets are network simulations, not tested interventions. Ethics approval 2023009.
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Commentary:
When a student's sleep stays poor across follow-ups, the relative risk of probable depression is 5.31 compared with sleep that gradually improves; fatigue is the most central network symptom, while guilt and sleep disturbance remain simulated targets, so campus care still asks about depression directly.
V. Public Health
9. Journal of Sleep Research: A European Sleep Research Society taskforce lists climate, access to care, digital tools, and a 24-hour society as five pressures on sleep (Public health)
Summary:
Fran Pilkington-Cheney of Nottingham Trent University, Adriana Michalak of the University of Modena and Reggio Emilia, and colleagues from the European Sleep Research Society's Equality, Diversity and Inclusion Committee and Early Career Network published a policy paper on October 18 in the Journal of Sleep Research, later carried by Medical Xpress. The method was a scoping review, iterative consensus meetings, and joint synthesis, not a new sleep trial. The five challenges are environmental and climate threats to sleep, inequitable access to sleep medicine and care, expansion of digital health tools, sleep misinformation, and constant connectivity in a 24-hour society. The paper names noise, artificial light, air quality, and night-time heat, and also names "sleepmaxxing" and orthosomnia, the pursuit of perfect sleep metrics on wearables. Recommendations are organized in a PESTEL frame across policy, economy, society, technology, environment, and law, and the authors state that many sleep trackers need stronger evidence and do not replace individual advice from an independent professional.
Links:
- Journal of Sleep Research — Challenges and next steps for sleep health in Europe
- Medical Xpress — European Sleep Research Society call on sleep health
Commentary:
The wearable sleep score can wait; the paper's levers are night-time temperature, noise, shift work, and staying online up to bedtime, rather than another perfect sleep metric.
10. Academy of Nutrition and Dietetics: On October 26 the Academy received initial CDC funding for a two-year systematic review of diet, the gut microbiome, and infection risk (Public health)
Summary:
On October 26 the Academy of Nutrition and Dietetics announced initial funding from the US Centers for Disease Control and Prevention for a two-year collaboration with the Association of State Public Health Nutritionists. The money is part of the CDC cooperative agreement on building national partnerships to prevent emerging and reemerging infectious diseases. The work is a systematic review of how dietary patterns and nutrition interventions affect the gut microbiome and infection risk, and of where nutrition might sit in efforts against drug-resistant infections. Findings are intended to become evidence-based guidance for clinical and community practitioners. The announcement gives no award amount, inclusion criteria, or effect size, and it releases no diet dose to follow.
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Commentary:
This funding does not change today's plate; until the review and the guidance exist, infection prevention stays with vaccines, hand hygiene, and current diet guidance rather than a microbiome product.
Today's Summary
- Diet: Night eating and a longer eating window tracked worse memory, at coefficients of −0.21 and −0.29, in an abstract that omits the sample size; a vegetable-based low-carbohydrate protein signature corresponded to a cardiovascular hazard ratio of 0.77, while the total and animal-based signatures did not.
- Training and prevention: Twelve weeks of resistance work in 60 older adults changed inspiratory and expiratory pressure between groups, and the sit-to-stand gain did not hold after baseline adjustment; the usable injury numbers sit in Nordic eccentric work, ankle bracing, and the dose of a multicomponent warm-up, not in a movement screen.
- Sleep: In Japanese outpatients with type 2 diabetes, at least 8 hours of sleep carried a nephropathy hazard ratio of 1.92, and a Chinese cohort put composite microvascular hazard ratios at 1.71 and 1.87 for under 7 hours and at least 10 hours; UK Biobank sleep variability tracked 0.14 points of fluid intelligence, and persistently poor sleep in Ningxia undergraduates carried a probable-depression relative risk of 5.31.
- Public health: The European Sleep Research Society framed night heat, shift work, and sleep-tracking misinformation as structural problems; the Academy of Nutrition and Dietetics received two years of review funding and released no new diet dose.
Daily Framing:
October 26 in the sports, health, and nutrition cycle was a day for reading the interval before changing a habit: meal timing, a low-carbohydrate protein signature, resistance work in older adults, and sleep duration each hold inside their own estimates, injury prevention means finishing an existing dose, and guidance on the microbiome and infection has not been written yet.
This digest is compiled from real-time search results and is for reference only.