People often blame social media algorithms that prioritize extreme content for increasing political polarization, but this effect has been difficult to prove. Only the platform owners have access to ...

Objective To synthesise the evidence on the effects of physical activity on symptoms of depression, anxiety and psychological distress in adult populations. Design Umbrella review. Data sources Twelve ...

Objectives To assess the effects of exercise interventions for preventing falls in older people living in the community. Selection criteria We included randomised controlled trials evaluating the ...

Objective Biologics for systemic lupus erythematosus (SLE) demonstrate variable treatment responses across trials. We evaluated baseline biomarkers as predictors of response to guide personalised ...