Blood pressure (strictly speaking: vascular pressure) refers to the force exerted by circulating blood on the walls of blood vessels, and constitutes one of the principal vital signs. The pressure of the circulating blood decreases as blood moves through arteries, arterioles, capillaries, and veins; the term blood pressure generally refers to arterial pressure, i.e., the pressure in the larger arteries, arteries being the blood vessels which take blood away from the heart. Arterial pressure is most commonly measured via a sphygmo manometer, which uses the height of a column of mercury to reflect the circulating pressure (see Non-invasive measurement). Although many modern vascular pressure devices no longer use mercury, vascular pressure values are still universally reported in millimetres of mercury (mmHg). The systolic arterial pressure is defined as the peak pressure in the arteries, which occurs near the beginning of the cardiac cycle; the diastolic arterial pressure is the lowest pressure (at the resting phase of the cardiac cycle). The average pressure throughout the cardiac cycle is reported as mean arterial pressure; the pulse pressure reflects the difference between the maximum and minimum pressures measured.Typical values for a resting, healthy adult human are approximately 120 mmHg (16 kPa) systolic and 80 mmHg (11 kPa) diastolic (written as 120/80 mmHg, and spoken as “one twenty over eighty”) with large individual variations. These measures of arterial pressure are not static, but undergo natural variations from one heartbeat to another and throughout the day (in a circadian rhythm); they also change in response to stress, nutritional factors, drugs, or disease. Hypertension refers to arterial pressure being abnormally high, as opposed to hypotension, when it is abnormally low.
Along with body temperature, blood pressure measurements are the most commonly measured physiological parameters.
read comments (0)Caralluma fimbriata is a succulent plant, in the cactus family, that has been used as a natural appetite suppressant in India for centuries. It’s a new arrival in the family of cactii and succulent plants that are becoming increasingly popular for their appetite suppressant, and weight loss properties, as well as their ability to lower blood sugar. Supplements made from the popular hoodia gordonii cactus from the Kalahari Desert in Africa, are, for example, growing in popularity and usage in the U.S. and Europe. Like hoodia, caralluma fimbriata has been used to suppress appetite, and as a portable food for hunting. It is used to suppress hunger and appetite, and enhance endurance throughout India. It is also sometimes considered a “famine food,” used during periods of famine to suppress appetite. For centuries, people in rural areas of India have eaten Caralluma fimbriata, which grows wild over various parts of the country. Caralluma fimbriata is cooked as a vegetable, used in preserves like chutneys and pickles, or eaten raw. Caralluma fimbriata is believed to block the activity of several enzymes, which then blocks the formation of fat, forcing fat reserves to be burned. Caralluma fimbriata is also believed to have an effect on the appetite control mechanism of the brain. Ayurvedic (traditional Indian medicine) experts have noted that there are no adverse effects when using Caralluma fimbriata, and the plant has no known toxicity. A patented, tested extract of Caralluma fimbriata has been developed and standardized by a company called Gencor. Known as “Slimaluma,” the extract delivers the plant in a concentrated form. One of the only products available in the U.S. that uses the Slimaluma formula is Country Life’s GenaSlim supplement, which combines the patented Slimaluma extract of Caralluma fimbriata with EGCG (epigallocatechin gallate) from green tea. Together they reportedly have a synergistic effect on appetite control and weight loss. In several clinical trials Slimaluma was shown to be effective in reducing body fat through appetite control.
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