Myth #1: Vitamin pills keep us healthy
With just one tablet,
we can improve our health! This is actually not the case. Vitamins only
regulate processes in our bodies, and we should be careful about taking
them in tablet form since an excessive amount of them can do more harm
than good.
Myth #2: Deoxygenated blood is blue in color
Blood that lacks oxygen,
which is pumped through the veins toward the heart, is definitely not
blue — it’s a dark red color. In school textbooks it’s colored blue
to emphasize the contrast with oxygenated blood. The veins you can see
through your skin seem blue because the light shining on them gets
refracted.
Myth #3: Brown sugar is healthier than white sugar
In fact, white and brown
sugar are the same thing. They differ in terms of the use of molasses,
which gives a product a darkish color. Brown sugar is often mistakenly
considered healthier because it’s not as sweet as white sugar,
on account of the larger amount of water the former contains.
Myth #4: Alcohol kills brain cells
A large amount of alcohol
affects metabolic processes in the body and can lead to a deficit
of oxygen. This can harm the connections between brain cells, but
it does nothing to the cells themselves.
Myth #5: Sugar makes children hyperactive
Sugar doesn’t make children
hyperactive — this is nothing more than a myth. Sugar means calories,
and calories mean energy. So when some children eat a lot of sweet
things, the energy just flows out of them. But remember that, most
of all, sugar is harmful to their teeth.
Myth #6: Nerve cells don’t regenerate
The supposed fact that
nerve cells can’t regenerate is not a fact. The death of nerve cells
is a constant and entirely natural process. New ones appear in various
different parts of the brain. When a person feels stressed, it is the
chemicals that make these cells function and interact with each other,
rather than the actual nerve cells, which are used up.
Myth #7: The left hemisphere of the brain is the source of creativity; the right hemisphere is the source of logic
It’s true that the left
hemisphere of the brain is responsible for certain functions and the
right for others. But scientists have yet to find people who have one
side that’s more developed than the other. The point is that several
parts of the brain function as the collective source of our creativity,
and they’re located in both the right and left hemispheres.
Myth #8: You need to get eight hours of sleep a night
Everyone knows that
we should sleep for eight hours a night. Yet different people need
different amounts of sleep, and both an excess and a lack of sleep can
have negative effects on our health. For some people, it’s enough
to sleep for six hours in order to feel great, whilst others feel
exhausted even after they’ve been in bed for nine hours.
Myth #9: Antibiotics kill viruses
Antibiotics only kill
bacteria. Influenza is caused by viruses that don’t react
to antibiotics. In this case, it’s like applying a Band-Aid to get rid
of a headache: it just won’t work.
Myth #10: Chocolate gives you blackheads
Scientists once carried out an experiment:
they gave dozens of people bars that contained ten times more chocolate
than normal. When they compared the number of blackheads these people
had before and after the experiment, they found no differences. It might
sound strange, but it’s true.
Myth #11: Sugar is addictive
In 2009, a book
came out about the results of an experiment in which laboratory mice
were fed large amounts of sugar over several days. Once they’d
experienced this diet, they couldn’t live without the stuff. However,
when the experiment was repeated with human beings, the same effect did
not occur. And, of course, human beings can’t survive on sugar alone.
Illustrator: Mariya Zavolokina
for BrightSide.me
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