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.

blood child normal pressure reading
HealthDay
So, while 120/80 mm/Hg is a normal reading for an adult and for some older children, that same reading could indicate high blood pressure in a younger,

High Blood Pressure - Adolescent Medicine - Health Library
More meaningful blood pressure readings can be obtained this way. For example, an infant may have a quite normal blood pressure of 80/45,

Interpreting Blood Pressure Readings in Kids - How to Determine
Interpreting blood pressure readings for children is somewhat complicated to be normal and abnormal, such easy comparisons arenâ™t possible for children.

Normal Blood Pressure Readings - Natural Blood Pressure Medication
Information on Ways to Maintain Normal Blood Pressure Readings. with any questions or concerns you might have regarding your or your childâ™s condition.

Blood Pressure Reading Chart for Adults and Children
This easy to follow blood pressure reading chart which also features normal child blood pressure and adult, will help your doctor and you keep check on your

Normal Blood Pressure Rate in Children - What is the normal blood
For boys and girls around your children's ages, normal blood pressures would Before a child is said to have high blood pressure, the readings would need

normal blood pressure reading
The normal blood pressure reading of an adult is different than that of a child or a teenager. Some adults can have either a normal blood pressure or a high

High Blood Pressure (Hypertension)
Among young kids, the "normal" range will depend on the child's gender, age, It's not unusual for a first blood pressure reading to be high because the

National Kidney Foundation: A to Z Health Guide Item
Normal blood pressure is lower in children. To determine whether your childâ™s blood pressure is high, the doctor will compare his/her reading with charts

The New York Times > Health > Children's Blood Pressure Levels
Children's Blood Pressure Levels Climb, Increasing Cardiac Risks the average systolic blood pressure, the higher number in a blood pressure reading,

High Blood Pressure in Children and Adolescents - Lucile Packard
High blood pressure means that there is higher than normal pressure inside Your child's physician may note an elevated blood pressure reading during a

MedlinePlus: High Blood Pressure
A reading of. 120/80 or lower is normal blood pressure; 140/90 or higher is high blood . High Blood Pressure and Children: Watch Your Child's Weight(Mayo

High Blood Pressure in Children and Adolescents
For example, an infant may have a quite normal blood pressure of 80/45 mm Hg, Your child's physician may note an elevated blood pressure reading during

What is a Normal Blood Pressure Reading?
Children will display different blood pressure readings. A normal blood pressure reading for young children, those between 3 and 5 for example,

High blood pressure and children: Early treatment offers hope
Normally, blood pressure readings in children vary based on sex, age and height Normal, 89th percentile or lower, Your child's blood pressure is normal.

Special Medical Needs of Children - DrGreene.com
The tables for normal blood pressures for children were compiled using cuffs of only these five widths, so while a reading obtained using the appropriate

Understanding Hypertension and Normal Blood Pressure
A blood pressure cuff measures both pressure readings. Because children naturally have a normal blood pressure that's lower than an adult's, a child is

Child Blood Pressure - DrGreene.com - caring for the next generation
Wherever I look on the Internet, I find adult blood pressure readings. What is a normal blood pressure in a 5-year- old girl?


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