A brief dialogue (YouTube transcript) arguing that cholesterol found in arterial plaques is a response to arterial lining damage rather than the primary cause of that damage. Speakers use a fireman analogy: cholesterol is likened to firefighters who arrive at a site of injury caused by factors such as smoking or sugar-related stress.
Just because cholesterol is at the scene of the crime doesn't mean it's a perpetrator.
I use the analogy that, you know, when there's a fire, the firemen show up. It's called to that site. Cholesterol is kind of like the fireman, right? It shows up to the site of damage. Is it the damage that is the risk factor, or is it the cholesterol that is the risk factor?
Cholesterol really is a response. So we find cholesterol in these deposits, what we call these fatty deposits in the inner lining of the artery. We call these plaques, but they're also there with lots of immune cells as well. So there's been a damage to the lining of the inner artery, which is caused by things like smoking or sugar stress. And then the response to that damage to try and heal the artery is when you get these deposits and cholesterol is there. So cholesterol is not the driver. It just happens to be at the scene of the crime.