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Eating breakfast helps to burn calories throughout the day.

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Medical Dictionary

Fat is a major source of energy in the diet and is used by the body to absorb nutrients, transport nutrients thru the body, help protect the organs, and insulate the body. The body needs some fat to function properly, but the diet should include good fats (monounsaturated fat and polyunsaturated fat) and should be limited in bad fat (saturated fat). All food fats contain 9 calories per gram and can cause weight gain if there is too much in the diet. There are three classes of fats; triglycerides, phospholipids, sterols.
A fever is a condition in which the body temperature becomes higher than the normal level of 98.6 degrees Fahrenheit or 37 degrees Celsius. A fever usually signals an infection and that the immune system is at work.
Fibrillation is rapid chaotic twitching movements of the heart that causes the heart to stop pumping blood effectively.
Frostbite is damage to bodily tissues from exposure to intense cold, usually temperatures below 32 degrees Fahrenheit or 0 degrees Celsius, for an extended period of time. The tissue experiences a severe loss of water and oxygen, beginning with the sensation of pins and needles which then turns to numbness. The frozen skin first appears white, cold, and hard and then becomes red and swollen. The toes, fingers, and face are the areas most commonly affected. With severe cases of frostbite, permanent tissue damage can occur and the area must be removed.
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