DID YOU KNOW?
It takes about 20 seconds to pump blood to every cell in
Your body has about six quarts of blood. In one day, the
blood travels about 12,000 miles.
Humans’ blood is red, octopus’ blood is blue; caterpillars’
blood is green.
DID YOU KNOW?
By the age of 12, an estimated 70% of children have
developed the beginning stages of hardening of the arteries.
One in five Americans has high cholesterol.
Children are less physically fit now than they were when
their parents were young.
You should consume no more than one teaspoon of salt per
day. Sodium retains fluid in the body, which makes the
heart work harder.
Working That Muscle
Your heart is really a
muscle. It's located a little to the left of
the middle of your chest.
The heart sends blood around your body. The blood
provides your body with the oxygen and nutrients it needs.
It also carries away waste.
The right side of your heart receives blood from
the body and pumps it to the lungs. The left side
of the heart does the exact opposite: It receives
blood from the lungs and pumps it out to the
The Heart Doctor
A doctor who specializes in preventing and
treating heart disease is known as a
Smoking is the most important preventable risk factor for
coronary heart disease. In fact, smokers’ risk of heart
attack is more than twice that of non-smokers
Why smoking is bad for your
Carbon monoxide found in cigarettes is a poisonous gas ( also
present in car exhaust fumes) and is picked up by the blood
more readily than oxygen, leaving less ‘room’ for oxygen in the
blood. The oxygen-carrying capacity of a smoker’s blood can
be cut by up to 15%. This means that the heart has to work
much harder to get enough oxygen all around the body.
Why is smoking so bad for our
Cigarettes contain nicotine, which causes blood vessels to
narrow, temporarily increasing your blood pressure.
Nicotine produces adrenaline which makes the heart beat
faster, causing the heart to work harder.
Nicotine makes the blood “sticky” and more likely to clot
and block the blood vessels.
It is a fact that the heart, when taken out of the body,
will continue to beat. Even when cut into parts, the
muscles in the heart will continue to beat.
The heart pumps over 300 quarts of blood an hour.
Your heart will beat approximately 2,700,000,000
times in a lifetime.
Your heart beats about 100,000 times a day.
You try this!!
•Put your hand on your heart. Did you place your hand on the left side of
your chest? Many people do, but the heart is actually located almost in
the center of the chest, between the lungs. It's tipped slightly so that a
part of it sticks out and taps against the left side of the chest, which is
what makes it seem as though it is located there.
•Hold out your hand and make a fist. If you're a kid, your
heart is about the same size as your fist, and if you're an
adult, it's about the same size as two fists.
•Your heart beats about 100,000 times in one day and about
35 million times in a year. During an average lifetime, the
human heart will beat more than 2.5 billion times.
You try this!!!
•Give a tennis ball a good, hard squeeze. You're using about the
same amount of force your heart uses to pump blood out to the
body. Even at rest, the muscles of the heart work hard--twice as
hard as the leg muscles of a person sprinting.
•Feel your pulse by placing two fingers at pulse points on your
neck or wrists. The pulse you feel is blood stopping and starting
as it moves through your arteries. As a kid, your resting pulse
might range from 90 to 120 beats per minute. As an adult, your
pulse rate slows to an average of 72 beats per minute.
•The aorta, the largest artery in the body, is almost the
diameter of a garden hose. Capillaries, on the other hand, are
so small that it takes ten of them to equal the thickness of a
•Your body has about 5.6 liters (6 quarts) of blood. This 5.6
liters of blood circulates through the body three times every
minute. In one day, the blood travels a total of 19,000 km
(12,000 miles)--that's four times the distance across the US
from coast to coast.
When blood returns to the heart, it follows a complicated pathway. If you
were in the bloodstream, you would follow the steps below one by one.
Oxygen-poor blood (shown in
blue) flows from the body into
the right atrium.
Blood flows through the right
atrium into the right ventricle.
The right ventricle pumps the
blood to the lungs, where the
blood releases waste gases and
picks up oxygen.
How the Blood
The newly oxygen-rich blood
(shown in red) returns to the
heart and enters the left atrium
Blood flows through the left
atrium into the left ventricle.
The left ventricle pumps the
oxygen-rich blood to all parts of
If you want your heart to be
healthy for the rest of your life,
follow this prescription:
1. Get plenty of exercise.
2. Follow a good diet.
3. Keep your heart clean and
So be smart and take care of your heart