Fact 28.. .Breathing .

• The average person breathes in the equivalent of 13 pints of air every minute.
• Children laugh about 300 times a day. Adults laugh about 15 to 100 times a day. Laughter is the best medicine, may have some truth. It helps to boost the immune system.
• The lungs are the only organs in the human body to float on water.
• In 1243, the Arab physician Ibn al-Nafis became the first person ever to describe the breathing process.
• If the lungs were open flat, they would cover the entire size of a tennis court!
• Breathing has very little to do with oxygen. Air has 21 percent oxygen and the body only needs 5 percent. The rest comes from carbon dioxide.
• Seventy percent of waste is eliminated through your lungs just by breathing.
• Guinness World Records lists that Charles Osborne of Anthon, Iowa as record holder for hiccupping for 68 years!
• The breathing rate is faster in children and women than in men.
• The human sneeze can take place at 10 mph.
• Humans exhale up to 17.5 milliliters of water per hour.
• In human beings, the right lung is larger than the left lung to accommodate the heart.