A sound argument is a type of reasoning that is both valid and true. It consists of premises that logically lead to a conclusion, ensuring that if the premises are true, the conclusion must also be true. This structure is essential in fields like philosophy and law, where clear reasoning is crucial. To be considered sound, an argument must meet two criteria: it must be valid, meaning the conclusion follows logically from the premises, and the premises must be factually accurate. For example, an argument about the benefits of exercise would be sound if it is based on true statements about health and fitness.