Voluntarily accepting a known risk is called of risk.

because health skills are tools and strategies and also practical skills are also something you need to learn (like tools and strategies) and put it in reality.

delegated (sometimes called enumerated or expressed) powers are specifically granted to the federal government in article i, section 8 of the constitution. this includes the power to coin money, to regulate commerce, to declare war, to raise and maintain armed forces, and to establish a post office.