Interesting Facts
-- We only inhale about 20% oxygen every breath, and 16% oxygen is exhaled.
-- While most people only have hiccups for minutes or a brief moments, one American man hiccuped nonstop from 1922 - 1990!
(68 years!)
-- Coughing blasts any obstructions out of the airways with a sudden rush of air.
-- Why people yawn isn't certain, it could be because they're tired or bored, but it is definitely true that when one person yawns, other are sure to yawn too because it's infectious.
-- All of the blood vessels in the human body could wrap twice around the world if they were stretched out!
-- All of the blood vessels in the human body could reach up to 160,000km (100,000 miles) if they were unravelled and stretched out, enough to go around the world four times!
-- In an average lifetime, the human heart beats around 2.5 billion times without pause!
-- The average human adult body contains up to 5L (or 9 pints) of blood!
-- In aerobic respiration, when you breathe in oxygen it releases stored energy in substances we obtain by eating (eg. carbohydrates).
-- Aerobic respiration provides the needed energy to make cells work, but also releases heat energy for warmth and kinetic energy in muscle cells to make the body move.
-- When you excercise, your muscles have a higher demand for oxygen and if this is not met, they switch to a different type of respiration called anaerobic respiration. This does not need oxygen to provide energy, but its waste project is lactic acid and that is removed by oxygen.
-- One drop of blood contains more than 250 million red blood cells, 375,000 white blood cells, and 16 million platelets!
-- Red blood cells only last for about 120 days, and afterwards they're recycled (eaten) for their iron by white blood cells!
-- Two million red blood cells are produced by red bone marrow in certain bones (skull, ribs, spine, and pelvis) every second as replacement for old ones!
-- There are more than 40 billion capillaries in the human body!
-- Blood = 55% plasma, 44% red blood cells, and 1% white blood cells, platelets.
-- While most people only have hiccups for minutes or a brief moments, one American man hiccuped nonstop from 1922 - 1990!
(68 years!)
-- Coughing blasts any obstructions out of the airways with a sudden rush of air.
-- Why people yawn isn't certain, it could be because they're tired or bored, but it is definitely true that when one person yawns, other are sure to yawn too because it's infectious.
-- All of the blood vessels in the human body could wrap twice around the world if they were stretched out!
-- All of the blood vessels in the human body could reach up to 160,000km (100,000 miles) if they were unravelled and stretched out, enough to go around the world four times!
-- In an average lifetime, the human heart beats around 2.5 billion times without pause!
-- The average human adult body contains up to 5L (or 9 pints) of blood!
-- In aerobic respiration, when you breathe in oxygen it releases stored energy in substances we obtain by eating (eg. carbohydrates).
-- Aerobic respiration provides the needed energy to make cells work, but also releases heat energy for warmth and kinetic energy in muscle cells to make the body move.
-- When you excercise, your muscles have a higher demand for oxygen and if this is not met, they switch to a different type of respiration called anaerobic respiration. This does not need oxygen to provide energy, but its waste project is lactic acid and that is removed by oxygen.
-- One drop of blood contains more than 250 million red blood cells, 375,000 white blood cells, and 16 million platelets!
-- Red blood cells only last for about 120 days, and afterwards they're recycled (eaten) for their iron by white blood cells!
-- Two million red blood cells are produced by red bone marrow in certain bones (skull, ribs, spine, and pelvis) every second as replacement for old ones!
-- There are more than 40 billion capillaries in the human body!
-- Blood = 55% plasma, 44% red blood cells, and 1% white blood cells, platelets.
Videos
From the old 70s/80s show Happy Days -
Potsie's Pump Your Blood Song |
This one is funny
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These are my two more informative videos.