Preparing your body for real-life movements and activities is known as functional movement. It trains your muscles to work together and movements such as squatting, reaching, pulling and lifting become easier when functional fitness is integrated into your life.
We need to put more thought and energy into it since we're not hunting and gathering our food every day. It takes some planning and knowledge to create a practice that fits into your life. Equipment, space and time aren't always easy to come by either.