Each Human has a biological KILL SWITCH, and it li lays among many body functions- digestive, lungs, blood vessels, immune system, neurological,, etc, but the most critical is the heart as it is the engine of Human life itself...
Once it is overworked & unable to supply necessary nutrients thru blocked vessels, building up kinetic energy of heat to burn up the heart & organs, , the body will cease to function, depriving nutrients but spreading only heat to burn up other organs and thus, sadly, one becomes history....
The cause is often associated with high cholesterol foods we eat, such as fats or red meats, & worse, with iack of moderate exercise to burn off the fats that would lead to such clogging up each blood vessel....
Stay healthy always. None needs to be deprived of palatable food, but to always keep MODERATION In mind & body, to live longer & its desires, such as to watch another sunrise or beloved kids grow up....