• It’s estimated that over a lifetime, humans produce a total of 10,000 gallons of saliva. While saliva is necessary for us to taste our food, we cannot taste it before some food dissolves in it.
• There are approximately 100 trillion cells in the adult human body.
• There are approximately 31 billion base pairs in the human genome.
• A mammal’s lifespan is typically determined by its size. But because humans have developed ways to protect themselves, their lifespan is longer. More specifically, a man’s lifespan should be 10 to 30 years— somewhere between a goat and a horse—but it’s an average of 74.7 years in the United States.
• Thanks to the body’s complex and extensive circulatory network, between 40 and 50 percent of body heat is lost through the head. This is why hats keep the body warm in winter—they keep the heat in the body.
• Compared to other cells in the body, brain cells live the longest, with some living an entire lifetime.
• Every second, the human body destroys as well as produces 15 blood cells.
• Approximately 90 percent of the body is made up of four elements: oxygen, carbon, nitrogen, and hydrogen.
• The brain is especially reliant on oxygen to function. It uses more than 25 percent of the body’s oxygen supply.
• In a single cell, there are six billion “steps” of the DNA or body’s genetic code. If stretched out, it would measure six feet, but it is twisted up in a coil in the nucleus of the cell, where its diameter measures only 1/2500 of an inch.
0 Comments
Please do not enter any spam link and keep comments respectful.