Struggling to keep kids off screens? Here’s how to reduce the harm

Tips on how to fend off the behavioural problems and cognitive troubles that come with too much screen time, too young.  What a new paper has to say about semaglutide and suicidal ideation, plus promising results from a trial of antibiotics in sub-Saharan Africa.  What dietitians can do to help drive down the rising rate of obesity.  And a rare inner ear condition that could benefit from developments in gene therapy.