The lower your 'bad' cholesterol (LDL-C) goes, the less likely you are to have a heart attack or die from heart disease—and this benefit is even bigger if you’ve already had a heart problem before.

Lowering your 'bad' cholesterol (LDL) reduces your risk of heart attacks and heart-related deaths — for people who’ve never had heart disease, each big drop in LDL lowers risk by about 1.5%, but for those who already had a heart problem, the same drop cuts risk by nearly 5%.

Taking stronger treatments to lower bad cholesterol seems to cut the risk of heart attacks, strokes, and other serious heart problems — even if your cholesterol isn’t that high to begin with.

Middle-aged adults who feel fine but have very high 'bad' cholesterol might be more likely to have hidden heart plaque, even if they don’t have symptoms.

If your 'bad' cholesterol is 100 or higher, lowering it more aggressively helps prevent heart-related deaths. But if it's already below 100, lowering it even more doesn't seem to help much — there might be a cutoff where treatment stops adding extra benefit.

If you have high 'bad' cholesterol, lowering it more aggressively can help you live longer, especially if your levels are really high to begin with. Doctors should decide how hard to treat based on how high your cholesterol is and your overall heart risk.