A drug once dismissed as ineffective suddenly worked—when scientists tested it under more realistic conditions that mimic the ...

Lev’s reporting has explored Americans’ deadly hostility to addiction medications, subpar treatment offered in jails and prisons, shifts in the illicit drug supply and consumption behavior, ...

Operant conditioning is a theory that explains how behaviors are influenced by their consequences or results. It’s often used today to help people adopt new behaviors or change old habits. If you’ve ...