| vakasunised | Data: Vineri, 15.01.2016, 17:21:16 | Mesaj # 1 |
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| What determines the rhythm of your heart When a doctor checks your heartbeat, have you ever wondered how it stays so regular? Or what's gone wrong when
someone has to get a pacemaker? When it comes to the heart, timing is critical.
Without a strong heartbeat, blood can't get to where it needs to go, and a
heartbeat needs to be steady in order to be strong.
To understand what sets the beat of your heart, and why that rhythm is so
important, it's first helpful to understand what exactly a heartbeat is
valentino uk and what it
does.
A "beat" is a contraction of the heart. Each time a section of the heart
contracts, it forces blood from one point to another. It goes like this:When
blood returns to the http://www.valentinoshoessale.co.uk/ heart from the
rest of the body, it flows into the right atrium (1).
What exactly keeps the pace? Since your heart is your body's engine, it makes
sense that it might work something like the engine in your car: It starts with a
spark..
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