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Wait Now… ‘Bad’ cholesterol can be good?

  [ 19 votes ]   [ 1 Comment ]
www.ProHealth.com • May 7, 2011


LDL is cholesterol delivered to the tissues for muscle building and repair. HDL takes away or cleans up excess LDL after these jobs are done. And in this study, people with higher LDL built the most muscle with an exercise regimen.

The so-called “bad cholesterol” - low-density lipoprotein, commonly called LDL - may not be so bad after all, reports a study at Texas A&M University that casts new light on the cholesterol debate, particularly among adults who exercise.

Researcher Dr. Steven Riechman, a researcher in the Department of Health and Kinesiology, says the study reveals that LDL is not the evil Darth Vader of health it has been made out to be in recent years, and new attitudes need to be adopted regarding the substance.

His work, with help from colleagues from the University of Pittsburgh, Kent State University, the Johns Hopkins Weight Management Center and the Northern Ontario School of Medicine, is published in the Journal of Gerontology.

Riechman and colleagues examined 52 adults ages to 60 to 69 who were in generally good health but not physically active, and none of them were participating in a training program.

The study showed that after fairly vigorous workouts, participants who had gained the most muscle mass also had the highest levels of LDL (bad) cholesterol, “a very unexpected result and one that surprised us.”

“It shows that you do need a certain amount of LDL to gain more muscle mass. There’s no doubt you need both – the LDL and the HDL - and the truth is, it (cholesterol) is all good,” the researchers say. “You simply can’t remove all the ‘bad’ cholesterol from your body without serious problems occurring.”

Cholesterol is found in all humans and is a type of fat around the body. A person’s total cholesterol level is composed of LDL (low-density lipoprotein) and HDL (high-density lipoprotein) cholesterol.

LDL is almost always referred to as the “bad” cholesterol because it tends to build up in the walls of arteries, causing a slowing of the blood flow which often leads to heart disease and heart attacks. HDL, usually called the “good cholesterol,” often helps remove cholesterol from arteries.

“But here is where people tend to get things wrong,” Dr. Riechman says.

•  “LDL serves a very useful purpose. It acts as a warning sign that something is wrong and it signals the body to these warning signs. It does its job the way it is supposed to.”

•  “People often say, ‘I want to get rid of all my bad (LDL) cholesterol,’ but the fact is, if you did so, you would die. Everyone needs a certain amount of both LDL and HDL in their bodies. We need to change this idea of LDL always being the evil thing – we all need it, and we need it to do its job.”

According to the American Heart Association, about 36 million American adults have high cholesterol levels.

“Our tissues need cholesterol, and LDL delivers it,” Dr. Riechman notes. “HDL, the good cholesterol, cleans up after the repair is done. And the more LDL you have in your blood, the better you are able to build muscle during resistance training.”

The study could be helpful in looking at a condition called sarcopenia, which is muscle loss due to aging.

• Previous studies show muscle is usually lost at a rate of 5% per decade after the age of 40, a huge concern, since muscle mass is the major determinant of physical strength.

• After the age of 60, the prevalence of moderate to severe sarcopenia is found in about 65% of all men and about 30% of all women, and it accounts for more than $18 billion of health care costs in the United States.

“The bottom line is that LDL – the bad cholesterol – serves as a reminder that something is wrong and we need to find out what it is,” says Dr. Riechman. “It gives us warning signs. Is smoking the problem, is it diet, is it lack of exercise that a person’s cholesterol is too high? It plays a very useful role, does the job it was intended to do, and we need to back off from always calling it ‘bad’ cholesterol because it is not totally bad.”

Source: Texas A&M University news release, May 5, 2011




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Article Comments Post a Comment

that's why Lipitor doesn't work
Posted by: Sandy10m
May 13, 2011
...and that is why people taking Lipitor and other cholesterol lowering drugs are still having heart attacks and strokes at the same rate as people who don't. Every hormone in your body is made of cholesterol. Without cholesterol, you would die, pure and simple. High cholesterol is just a symptom that means your liver is unhealthy for some reason. That is the subject that needs investigation. But, more than likely, someone will just come up with a drug to fix your liver, instead of figuring out the cause and fixing the vitamin or mineral deficiency, etc.
Reply Reply
 
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