Your Heart: High-Pressure Electric Pump

Your heart is basically a high-pressure electric pump that fights gravity every single second.

It blasts blood through thick, muscular arteries to reach every corner of your body,

while your veins use tiny one-way valves to make sure that blood doesn't flow backward.

It’s all triggered by literal electricity generated inside your chest. But the plumbing

is fragile. If you let cholesterol build up, it’s like gunking up a pipe with grease,

forcing the pressure up until something finally snaps. Take care of the engine because unlike

a car, you can’t turn this motor off for repairs.