INFORMATION YOU MUST KNOW !!!!! About human body We have 60,000 to 100,000 miles of blood vessels enough to circle the earth The brain even it constitute 2 percent of body weight but uses 20% of body energy Taller in the morning you are actually taller when you wake up then when you go to bed because your spinal disc compresses No self tickling because your brain anticipates the sensation Brain has 86 billion neurons. Brain is more active usually at night