View full size image. Earth, the third planet from the sun, is the fifth largest planet in the solar system; only the gas giants Jupiter, Saturn, Uranus and Neptune are bigger. Earth is the largest of the terrestrial planets of the inner solar system, bigger than Mercury, Venus and Mars.
Video: Squat exercise. Dr. Laskowski: The squat is a body resistance exercise that works the leg muscles. Specifically, the squat targets the quadriceps and the hamstring muscles. Strengthening these muscles can help protect your knees and boost your performance in a variety of sports.
Squatty Potty is an innovative toilet stool that allows people to sit on the toilet the way humans were always meant to sit, which is by squatting. The colon is a tubular organ 3-6 feet long that has a natural kink to allow for continence.