It's fatty deposits in blood called "hyperlipidemia"
hyper- = excessive
-lipid- = fatty substance/ bad cholesterol (low density lipoprotein)
-emia = blood or substance present in blood
Which ultimately causes heart attack since these "fats" can coagulate in the blood vessels of the heart.
The heart muscle will die due to the lack of oxygen since blood can't past through.
Be conscious about your intakes to max-out your life expectancy/ lifespan.
If a cheat day came, always exercise the day after to flush excess nutrients & toxins.