Tuesday, September 16, 2025

Facts and trivia

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‘Research has shown that the baby inside the womb feels what the mother is feeling.’

How many cells do we have in our body?

THE figures often quoted are between 50 to 75 trillion cells. The average life span of the cells is: red blood cells, 120 days; white blood cells, over a year; platelets, ten days; bone cells, 25-30 years; brain cells, lifetime; colon cells, 3-4 days; skin cells, 19-34 days; stomach cells, 2 days; and sperm cells, 2-3 days. Obviously, these cells regenerate under normal conditions.

What is the force of a human bite?

Tightly clenched teeth can generate a force of as much as 55 pounds (25 kilos) on the incisors and 200 pounds (90.5 kilos) on the molars.  For the molars, a greater force at 268 pounds (122 kilos) has been recorded.

What is the largest organ in our body?

The skin is the heaviest and largest organ in the human body. The total surface area is 20 square feet or 1.98 square meters for an average individual and 25 square feet or 2.3 square meters for a larger person, and weighing about 5.6 pounds or 2.7 kilograms. The liver is the second largest organ (1.1 to 1.5 kilos) and serves about 500 functions as the main chemical factory of the human body.

How long is the human intestine?

Our small intestine is about seven meters (22 feet) long, and the large intestine (colon) is about 1.5 meters (5 feet) in length.

How much blood do we have?

A male weighing about 70 kilos (154 pounds) would have about 5.5 quarts or 5.2 liters of blood. A female of about 50 kilos (110 pounds) would have about 3.5 quarts or 3.3 liters.

This blood is circulated through blood vessels that stretch to about 60,000 miles (95,500 kilometers) if placed end to end. The largest artery in the body is the aorta, and the largest vein is the vena cava.

How fast does human hair grow?

On average, human hair grows about nine inches each year. It grows faster in the summer because warm weather increases blood circulation to the hair follicles. The fingernails, on the other hand, grow about 0.8 inches (2 centimeters) every year. The middle fingernail grows the quickest. Fingernails grow four times faster than toenails.

What does the term LASER stand for?

The acronym LASER stands for “light amplification by stimulated emission of radiation. The applications of laser technology are far-reaching and wide: micro matching of components and circuit boards for our computers; fiber-optic communications in long-distance telephone networks; barcoding scanners; medical diagnostics and therapeutics; desktop printers, color scanners, etc; military target designators, etc.

Why the dimples in golf balls?

Dimples reduce the drag that will slow down the golf ball as it travels (some up to 300 yards or more) by minimizing the eddies or wake effects that drain the ball’s energy and velocity. This is achieved by the air clinging to the dimpled balls longer.

Can human voice break glass?

Yes, this has been proven in several experiments. The amplified high-pitched singing voice of a soprano or a tenor standing about ten feet from a wine glass cracked the glass in less than half a minute. Without amplification, this could conceivably be done with the glass about two feet away. The sheer force of the vibration from the vocal cords does it.

Do babies feel what moms feel?

Research has shown that the baby inside the womb feels what the mother is feeling. If the mother is happy, crying, or depressed, the baby could feel the emotion of the mother and feel the same. And it also cries in the womb but without sound. At this stage, the baby could also feel pain.

Will a resected heart continue to beat?

Yes, a human or animal heart cut out of the body will continue to beat on its own, until all the stored energy (glucose and derivative enzymes, etc.) in the cardiac muscle cells is used up. This is usually within five to eight minutes. The heart is the only organ in the body that has automaticity and rhythmicity, hence it beats automatically and with rhythm even after resection from the body (as in the preparation for heart transplant).

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Philip S. Chua, MD, FACS, FPCS, a Cardiac Surgeon Emeritus based in Northwest Indiana and Las Vegas, Nevada, is an international medical lecturer/author, Health Advocate, newspaper columnist, and Chairman of the Filipino United Network-USA, a 501(c)3 humanitarian foundation in the United States. He was a decorated recipient of the Indiana Sagamore of the Wabash Award in 1995, bestowed by the then Indiana Governor, later a Senator, and a presidential candidate, the late Honorable Evan Bayh. Other Sagamore past awardees include President Harry Truman, President George HW Bush, Muhammad Ali, and Astronaut Gus Grissom (Wikipedia). Websites: FUN8888.com, Today.SPSAtoday.com, and philipSchua.com Email: scalpelpen@gmail.com

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