Introduction Prediabetes, a key precursor to type 2 diabetes, is highly prevalent and underdiagnosed, particularly among adults aged ≥45 years with elevated body mass index (BMI). Early detection is critical because lifestyle interventions can delay or prevent progression to type 2 diabetes. The Glow Up (GLucose Observation and Wearable Use for Prevention) study aims to (1) test the feasibility of a digital biomarker for prediabetes screening using wearable– and smartphone-derived lifestyle factors (e.g., sleep, physical activity, and nutrition patterns), in daily life and to (2) characterize individual– and metabolic subgroup-level variability in lifestyle factors and glycemic control. Specifically, we aim to examine how lifestyle factors relate to diabetes risk and identify personalized predictors of early metabolic dysregulation. Methods and analysis Glow Up is a prospective, single-center, observational case-control study conducted in Switzerland. Adults (N=200) aged ≥45 years with BMI ≥25 kg/m² will be recruited, including n=100 individuals with prediabetes and n=100 age– and sex-matched case-control normoglycemic controls. Participants will undergo four weeks of continuous monitoring using a blinded continuous glucose monitor (CGM), and commercial– and medical-grade wearables; e.g. capturing physical activity, sleep, and physiological markers (heart rate variability, heart rate and skin temperature); in addition to completing daily image-based meal logs, using smartphones. Glycated haemoglobin (HbA1c), fasting plasma glucose (FPG) and body anthropometrics will be collected at baseline and follow-up, four weeks apart. Primary outcomes include HbA1c and FPG, measured at approximately four week follow-up. Secondary outcomes include CGM metrics, lifestyle profiling (sleep, physical activity, stress, and nutrition), and adherence to image-based meal logging. Ethics and dissemination The study has received ethics approval from the Ethics Committee of Eastern Switzerland (BASEC ID.: 2025-00972). Results will be published in international peer-reviewed journals and at national and international conferences as posters, presentations, and articles. Summaries will be provided to the funders and personalized reports to participants. Trial registration number NCT07373418

This paper presents results from an RCT exploring whether a behavioural intervention can improve the conservation of a common pool resource. The literature on common pool resource management suggests that the existence of rules and sanctions is important to resource conservation. However, behavioural science suggests that individuals have finite cognitive capacity and may not be attentive to these rules and sanctions. This paper investigates the impact of an SMS message intervention designed to improve users’ knowledge of and attentiveness to existing forest use rules. An RCT in Uganda explores the impact of these messages on forest use and compliance with the rules. This paper finds that SMS messages raise the perceived probability of sanctions for rule-breakers. However, SMS messages do not induce full compliance with forest use rules or systematically reduce forest use.

The World Trade Organization (WTO) is in a unique position to deliver on Sustainable Development Goal (SDG) 14.6 by reforming global fisheries subsidies in 2020. Yet, a number of unanswered questions threaten to inhibit WTO delegates from crafting a smart agreement that improves global fisheries health. We combine global data on industrial fishing activity, subsidies, and stock assessments to show that: (1) subsidies prop up fishing effort all across the world’s ocean and (2) larger subsidies tend to occur in fisheries that are poorly managed. When combined, this evidence suggests that subsidy reform could have geographically-extensive consequences for many of the world’s largest fisheries. While much work remains to establish causality and make quantitative predictions, this evidence informs the rapidly-evolving policy debate and we conclude with actionable policy suggestions.

If trade diplomats thought they knew one thing, it was how to cut industrial tariffs. Yet the Doha deadlock rests squarely on the inability to compromise on industrial tariff cuts. This column says that the arguments made for higher levels of ambition don't stand up to much scrutiny and should not be allowed to provide a basis for a continuing impasse.