TO UNDERSTAND THE future of America, don’t head to Washington, DC. Instead, talk to the governors of its most conservative state, Mississippi, and its most progressive one, California. Bespectacled ...

Only Slate Plus members can gift Slate stories. Become a member to share 10 free articles a month. Even some young people now regard age 25 as a turning point with seemingly magical properties. In one ...

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 ...