What is the safest form of stretching and why?

The safest form of stretching is static stretching, which involves holding a stretch for a prolonged period, typically 15-60 seconds. This method allows muscles to gradually lengthen and relax, reducing the risk of injury. Unlike ballistic or dynamic stretching, which can involve quick, jerky movements that may strain muscles, static stretching promotes flexibility while minimizing the potential for overstretching or muscle tears. It's best performed when the muscles are warm, such as after a workout.