A look at the OTC options for hot flashes—from black cohosh to soy isoflavones—including what the evidence actually shows and how to choose safely.
Combustion is a redox reaction because electrons shift between atoms as fuel burns. Learn how to spot the oxidation and reduction in any combustion equation.
Relapse is common in addiction recovery, but each attempt still matters. Here's what the research says about how many tries it typically takes to quit.
Sleep talking is usually harmless, but certain nighttime behaviors—like acting out dreams—can be an early sign of conditions like Parkinson's disease.