What is Cholesterol?

Cholesterol is a sterol (a combination steroid and alcohol). Cholesterol is a lipid found in the cell membranes of all tissues, and it is transported in the blood plasma of all animals. Because cholesterol is synthesized by all eukaryotes, trace amounts of cholesterol are also found in membranes of plants and fungi.The name originates from the Greek chole- (bile) and stereos (solid), and the chemical suffix -ol for an alcohol, as researchers first identified cholesterol in solid form in gallstones by Francois Poulletier de la Salle in 1769. However, it is only in 1815 that chemist Eugene Chevreul named the compound "cholesterine".[2]Most of the cholesterol is synthesized by the body and some has dietary origin. Cholesterol is more abundant in tissues which either synthesize more or have more abundant densely-packed membranes, for example, the liver, spinal cord and brain. It plays a central role in many biochemical processes, such as the composition of cell membranes and the synthesis of steroid hormones. Cholesterol is insoluble in blood, but is transported in the circulatory system bound to one of the varieties of lipoprotein, spherical particles which have an exterior composed mainly of water-soluble proteins. The main types, low-density lipoprotein (LDL) and high-density lipoprotein (HDL) carry cholesterol from and to the liver.According to the lipid hypothesis, abnormally high cholesterol levels (hypercholesterolemia) and abnormal proportions of LDL and HDL are associated with cardiovascular disease by promoting atheroma development in arteries (atherosclerosis). This disease process leads to myocardial infarction (heart attack), stroke and peripheral vascular disease. As high LDL contributes to this process, it is termed "bad cholesterol", while high levels of HDL ("good cholesterol") offer a degree of protection. The balance can be redressed with exercise, a healthy diet, and sometimes medication.

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Beat High Blood Pressure - Men's Health
"You can achieve up to a 10-point drop in blood pressure from regular aerobic exercise," says Dr. Elefteriades. A solid workout raises your blood pressure,

Bloody Nose - Symptoms and Signs from MedicineNet
Causes of Bloody Nose. Hay Fever · High Blood Pressure Bystolic Approved for High Blood Pressure · Hypertension Linked to Mild Cognitive Impairment

This View of Life - My blood pressure is a bit high today.
My blood pressure is a bit high today. The front page of today's Cincinnati Enquirer: (I was going to link to the article, but I can't seem to find the same

Ambulatory Bloody Pressure Procedure Explained - Cardiac care
An â˜Ambulatory Blood Pressure Monitorâ™ is a device that will measure your blood pressure over a 24 hour period. It is worn during regular daily activities

Blood - Kosmix Topic Page - Medical Information for Blood
Want to receive monthly e-mails from us with the latest blood pressure and heart news, Wait 5 minutes of rest before checking blood pressure.

19 with high bloody pressure --The Doctors Lounge(TM)
Hi, im 19 and apperently I have really high bloody pressure so says a nurse friend of the family, im kinda scared to goto the doctor not.

Howstuffworks "Blood Pressure Medications"
Blood pressure medications can fall under many different names and have vastly different effects on the body. Learn about blood pressure medications.

Howstuffworks "How does a blood pressure gauge (sphygmomanometer
When I go to the doctor's office and they put that cuff thing around my arm to check my blood pressure, what are they doing? What are they listening for

iParenting - - Pregnancy, Preconception, Babies, Children
found 45 expert q&a for blood pressure. What's the best way to handle bloody noses? What safety precautions should I take when exercising while pregnant?

Howstuffworks "How Blood Works"
Omron Wrist Blood Pressure Monitor with A.P.S. - HEM-650 Omron offers an easy and convenient way to monitor your blood pressure with its HEM-650 Wrist

womenshealth.gov Glossary
Blood pressure is considered high when greater than 140 over 90 mm Hg (millimeters of Long-term high blood pressure can damage blood vessels and organs,

High Blood Pressure â” Blogs, Pictures, and more on WordPress
arwarashid wrote 2 days ago : HIGH BLOOD PRESSURE Hypertension or high blood pressure, as it is more commonly known, is regarded as a silent killer. ⦠more

The Edward D. Freis Papers: Early Career and Work with
Over time, high blood pressure weakens the heart by forcing it to work harder, Early indications that high blood pressure could be dangerous,

Cyanokit Official FDA information, side effects and uses.
Elevations in blood pressure (≥180 mmHg systolic or ≥110 mmHg Increases in blood pressure were noted shortly after the infusions were started;

How can i pervent my bloody pressure going low? - Yahoo! Answers
Why would you even worry about this? Your body regulates your blood pressure itself. If you are not having any symptoms, your blood pressure is not too low.

How's Your Blood Pressure? - MedHunters
There I am on a treadmill pumping away like I'm trying to win a marathon, except I'm hooked up to a blood pressure machine and several other nasty looking

The Guild of Grumpy Blokes: Bloody blood pressure
I bought a machine to monitor my blood pressure on the advice of my Doctor. Great idea huh? All its done since I bought it has put me into a blind panic as

NPR: Sweeney Todd Probably Had High Blood Pressure, Too
Sweeney Todd Probably Had High Blood Pressure, Too. The tagline to the new (brilliant, though bloody) Sweeney Todd movie is "Never Forgive. Never Forget.

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