There are two kinds of cholesterol: LDL (low-density lipoprotein) and HDL (high-density lipoprotein). LDL is considered the "bad" cholesterol that you should avoid, while HDL is considered the "good."
Why? It comes down to the fact that researchers have long thought LDL cholesterol clogged your arteries while HDL helped clean them up, but new studies have revealed that there's more to cholesterol than meets the eye; instead, perhaps HDL cholesterol isn't as miraculous for the body as originally thought.
Statistically speaking, people with more HDL in their systems seem to be just as likely to develop heart disease as those with less; in other words, HDL might not be cleaning up your arteries as much as health experts initially thought it did.
These findings are somewhat polarizing to what we've been getting told for years, so it could mean that cholesterol treatments are apt to change drastically in the future.
In the meantime, you can avoid heart disease by eating healthier low-cholesterol foods and exercising regularly. It may not sound as appetizing, but your health will thank you.