The heart has four chambers running in conjunction with one another pulsing -- The blood’s pressure alternates consistently and swiftly and is just enough to allow for our survival.

it does very little else but allow for our survival.
This is interesting to note as the heart has been known to break.
If a heart is broken is death the result or can it be repaired?

...a question which few will ask but many feel
Perhaps the surgeons can fix your broken heart.  Go ask them.
Perhaps a defibrillator can revitalize what has shattered within your chest.
anything is worth a try...