Dear MEL
Topic Readers,
The incredible
things we know about your heart and blood
Your
heart is a hard worker. He beats about 70 times a minute, 24 hours a day and never
stops pumping blood to your body. He actually pumps 300 liters of blood just in
an hour.
What
about blood? It delivers essential stances such as nutrients and oxygen to the
cells and transports metabolic waste products away from those same cells. No wonder
why the heart has to keep working 24-7 continuously.
There
are some mysteries, though. Does the heart beat affect the person’s mood? Why
are there different blood types while they all seem to do the same things?
Enjoy
reading and learning about the heart and blood.
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