health summary

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Below is the article summary. For the full article, see health.

health, Extent of continuing physical, emotional, mental, and social ability to cope with one’s environment. Good health is harder to define than bad health (which can be equated with presence of disease) because it must convey a more positive concept than mere absence of disease, and there is a variable area between health and disease. A person may be in good physical condition but have a cold or be mentally ill. Someone may appear healthy but have a serious condition (e.g., cancer) that is detectable only by physical examination or diagnostic tests or not even by these.

weight training Summary

Weight training, system of physical conditioning using free weights (barbells and dumbbells) and weight machines (e.g., Nautilus-type equipment). It is a training system rather than a competitive sport such as Olympic weightlifting or powerlifting. There is evidence of weight training even in

pancreas Summary

Pancreas, compound gland that discharges digestive enzymes into the gut and secretes the hormones insulin and glucagon, vital in carbohydrate (sugar) metabolism, into the bloodstream. In humans the pancreas weighs approximately 80 grams (about 3 ounces) and is shaped like a pear. It is located in

The role of lysosomes in intracellular digestionDigestion in protozoan organisms such as amoebas and paramecia takes place when a food particle is encased in a food vacuole. The vacuole and a lysosome unite, forming a digestive vacuole, and the products of digestion are absorbed across the vacuolar membrane. Indigestible wastes are ultimately expelled.

digestion Summary

Digestion, sequence by which food is broken down and chemically converted so that it can be absorbed by the cells of an organism and used to maintain vital bodily functions. This article summarizes the chemical actions of the digestive process. For details on the anatomy and physiology for specific

dieting Summary

Dieting, regulating one’s food intake for the purpose of improving one’s physical condition, especially for the purpose of reducing obesity, or what is conceived to be excess body fat. Dieting plans are based on the reduction of any of the macronutrients (fats, carbohydrates, and proteins) that