Getting to the heart of the matter

The following text is originally lifted from the trivia section of The Jakarta Post dated Monday, 19 November 2007.

~Compiled from various sources~

  • The average human heart beats about 100,000 times every 24 hours. In a 70-year lifetime, the heart beats more than 2.5 billion times.
  • A woman’s heart beats faster than a man’s.
  • The human heart creates enough pressure to squirt blood nine metres out of the body.
  • The valves of the human heart are as thick as a single piece of tissue paper.
  • The aorta, which is the largest artery located in the body, is about the diameter of a garden house.
  • The average person takes from 12 to 18 breaths per minute.
  • The right lung takes in more air than the left lung.
  • The left lung is smaller than the right lung to make room for the heart.
  • The brain has no sensation of pain, even when it is cut.
  • The average brain comprises 2 percent of a person’s total body weight. Yet it requires 25 percent of all oxygen used by the body, as opposed to 12 percent used by kidneys and 7 percent by the heart.
  • There are 100 billion neurons in the human brain. Each neuron is linked to hundreds of other neurons.
  • Electrical simulation in certain areas of the brain can revive long lost memories.
  • Your brain is more active and thinks more at night than during the day.
  • The arteries and veins surrounding the brain stem called the “circle of Willis” looks like a stick person with a large head.
  • The brain is 80 percent water.
  • Your brain has the relative consistency of oatmeal.
  • Humans begin losing brain cells at the age of 21.
  • The Neanderthal’s brain was bigger than your is.
  • The short-term memory capacity for most people is between five and nine items or digits.
  • The human brain stops growing at age 18.
  • The skin weighs twice as much as the brain.
  • The storage capacity of the human brain is about four terabytes (4,000 gigabytes).
  • The average brain weighs 1.35 kg, but about 1kg of that is water.
  • The soft mass of the adult brain is motionless. Though it consumes up to 25 percent of the blood’s oxygen supply, it does not grow, divide or contract.
  • Nerve impulses to and from the brain travel as fast as 270 khp.
  • The stomach can break down goat’s milk than cow’s milk.
  • It takes the stomach an hour to break down cow’s milk.
  • The stomach of an adult can hold 1.5 litres of material.
  • There are 35 million digestive glands in the stomach.
  • Every day the human stomach produces about two litres of hydrochloric acid.
  • Even if you eat food standing on your head, the food will still end up in your stomach.

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