Will High Cholesterol Eventually Kill You? (By: Good Looking Pharmacist w/ Good Looking Loser) Forward by Good Looking Loser High cholesterol runs in my family. My grandfather (on my Dad's side) had a total cholesterol level that exceeded 400mg/dl (EXTREMELY HIGH). My Dad's LDL (bad cholesterol) has never been less than 275mg/dl (EXTREMELY HIGH). Since cholesterol is "bad" certainly both were destined for developing heart disease at an early ag...