Awesome
& Little-Known Facts about the Human Body
Your body is many things: a mechanical
device, a walking chemistry set, a sustainable life form, and an ever-changing
biological phenomenon. There’s a lot to know about the body. Were you aware of these ten amazing facts?
1. For
every pound of fat gained, you add seven miles of new blood vessels.
New tissue needs blood supply, so your vascular system
expands to accommodate it. This also means your heart must work harder to pump
blood through the new network, which may reduce oxygenation and nutrient
replenishment in other tissues. Lose a pound? Your body will break down and
reabsorb the unneeded blood vessels from the previous tissue.
2. Muscle
tissue is three times more efficient at burning calories than fat.
This is why possessing more muscle should be a
training goal for most people. More muscle = more calories burned = less fat =
being more fit looking. Simple goals and simple math.
3. You are
taller in the morning than in the evening.
When you crawl out of the sack in the morning you are
at your tallest. On average, you are approximately one half inch taller when you wake in the morning, thanks to excess fluid between within
your spinal discs. While you are sleeping, these fluids replenish. During the
day your body has to deal with the stress of standing, so the discs become
compressed and the fluid seeps out. This results in you losing a small amount
of extra height.
4. Your
stomach manufactures a new lining every three days to avoid digesting itself.
As a part of the digestive process, your stomach
secretes hydrochloric acid (HA). HA is a powerful corrosive compound also used
to treat various metals. The HA your stomach secretes is also powerful, but
mucous lining the stomach wall keeps it within the digestive system. As a
result it breaks down the food you consume, but not your own stomach.
5. Your
body produces enough heat in only thirty minutes to boil a half-gallon of
water.
Your body is the epitome of a study on the laws of thermodynamics. You produce heat from all that is going on -
exercise, metabolizing food, maintaining homeostasis – and as you sweat,
exhale, excrete, and urinate (lovely thoughts, all of them).
6. Human
bone is as strong as granite, relative to supporting resistance.
Would you believe a matchbox-size chunk of bone can
support 18,000 pounds? Compared to concrete, human bone is four times greater in support strength.
7. Your
skin is an organ.
Just like the liver, heart, and kidneys, your outer covering is an organ. An average man has enough skin on his body to cover
approximately twenty square feet. For an average woman it is approximately
seventeen square feet. Approximately 12% of your weight is from your skin. And,
your skin replaces 45,000+ cells in only a few seconds. It’s constantly growing
new skin and shedding old skin.
8. By the
age of eighteen your brain stops growing.
From that age forward it begins to lose more than 1,000 brain cells every day. Only two
percent of your body weight is occupied by your gray matter, but is uses up to
20% of your overall energy output (it needs carbohydrates). Your brain works
continuously and never rests, even when you’re asleep. Aside from producing REM
dreams, your brain works overtime to replenish its ability to function normally
during your daytime waking hours.
9. There
are more than 600 individual skeletal muscles and 206 bones in your body.
If all 600+ muscles contracted and pulled in the same
direction, you could lift over twenty tons of resistance. Additionally, the
adult skeleton is composed of 206 bones, but at birth an infant skeleton
contains approximately 350 bones. Over time, some of the 350 bones fuse
together and eventually grow to the 206 adult figure.
10. You
need to consume a quart of water each day for four months to equate to the
amount of blood your heart pumps in one hour.
Additionally, over a lifetime, at your normal
(resting) heart rate you will have pumped enough blood to fill thirteen oil
super tankers. To further expound on this fact, on average, your heart beats
40,000,000 times per year. Doing the math, over your lifetime (both men and
women averaged), that results in 2,600,000,000 heartbeats (two billion, six
hundred million). This does not even factor in your increased heartbeats due to
your love of exercise.
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nice work, stay on
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