Effect of spaceflight on the human body of muscle fibre prominent in muscles also change. Slow twitch endurance fibres used to maintain posture are replaced by fast twitch rapidly contracting fibres that are insufficient for any heavy labour. Advances in research on exercise, hormone supplements and medication may help maintain muscle and body mass. Bone metabolism also changes. Normally, bone is laid down in the direction of mechanical stress. However, in a microgravity environment there is very little mechanical stress. This results in a loss of bone tissue approximately 1.5% per month especially from the lower vertebrae, hip and femur. Due to microgravity and the decreased load
The Biggest Douche in the Universe uselessly vague statements about Kenny, and advises Kyle that his grandmother wants him to "look for four white doves." Disappointed with Edward, Chef takes Cartman to his parents in Scotland and has them perform an exorcism. About to fly back to Colorado, Kyle spots a poster advertising a school called Jewleeard, with four white birds as its logo. Convinced, he rushes off to enroll himself. Stan goes to Edward's house, and offends him by trying to get him to admit that what he does is not real, and calls him a "douche" and "the biggest douche in the universe". Before