Habits of Life

As an illustration of the effects of a cold environment the results of Sellers and You (1956) will be mentioned. Rats on a choline-deficient diet had fewer cardiovascular lesions if kept in the cold (1-3 C.) than did a control group living at a normal room temperature, whereas for the choline-supplemented groups the reverse was true. In this connection Client (1950) found an increase of the iodine number of the body fat in rats on exposure to a temperature of 10° instead of 20° C. This might be due to oleic acid, which can be produced in the body, rather than necessarily to the essential polyunsaturated fatty acids. 

Moreover, lack of physical activity promotes a chronic postprandial hyperlipemia (Chailley el al., 1955), decreases the clotting time (Walker, 1955 McDonald and Fullerton, 1958), and inhibits fibrinolysis (Biggs et al., 1947 see also Greig, 1956 and Greig and Runde, 1957). There are more deaths from cardiac infarction in physically inactive groups than in active subjects (J. N. Morris et ed., 1953, 1956 Biorck et al., 1954 see also Pomeroy and White, 1958). 

Psychical stress has often been considered an important cause of the diseases under discussion. However, data and results are difficult to evaluate and comparisons of the two diseases are not possible. 

An elevating effect on the cholesterol levels and a decreased fibrinolysis and clotting time have been reported by Roseman (1958) in accountants under stress circumstances. Byers (1958), inducing stress conditions by electric stimuli in rats, found no change in plasma cholesterol or phos- 

Concluding this section, it can be said that the factor of physical activity among the habits of life certainly is a very important one, practically as well as theoretically. The factor of psychical stress still remains difficult to evaluate and to investigate. 

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In recent times much knowledge has been gathered on factors that play, or may play, a role in the etiology of atherosclerosis. Besides other studies, many investigations of the blood plasma constituents have been made to establish their possible relationship with atherosclerosis, and also to find the relation of these blood constituents, and of atherosclerosis, to such factors as diet, habits of life, race, and climate. 

Habits of life which can play a role in inducing or preventing both diseases. 

Bath and, especially shower products are applied more and more with changing habits of life with increasing sport activities. - Surfactants, their main raw materials, and other ingredients are similar to those in shampoos (->hair preparations). Shower preparations often are recommended for skin cleaning as well as for shampooing. Further bath preparations are bath oils, which contain similar oily substances as skin creams and lotions. 

It will give you an inside of the life, thinking and habitation of an alchemist, not of the Middle Ages but of our own present century"... 

There is no one correct theory for the origin of life on Earth or any habitable planet, although many have been presented. The current set of ideas is summarised in Figure 1.5. Aside from the theory of creation, which seems particularly hard to test, the testable theories of the origins of life divide into two extraterrestrial or panspermia, the theory that life was seeded everywhere somewhat randomly and terrestrial, that life originated de novo on Earth or other habitable planets around other stars. The theories of terrestrial origin are more favoured but the recent discovery of habitable planets and life within any solar system suddenly makes panspermia more likely. 

The temperature of the planet within a habitable zone controls the rate of chemical reactions, the availability of chemicals and the phase in which the chemicals will be found. These have profound consequences for prebiotic chemistry and the origins of life. 

It can be argued that if the original coolant concentration is maintained and the cooling system kept clean, the coolant service life will be extended. While this may be true in some cases, the habits of motorists as well as the everyday practices of service station attendants make a two-year recommendation impractical. 

All ideal], plim—< the rerj boL and moat im- elfish—ell bopei end delicti, , , blodo of life, habits, preddittiooi. preferences, m-ptrioritiei, weaknesses, indtiJgeiXH, . . in oh... 

See R. Bellah et al.. Habits of the Heart Indiindualism and Commitment in American Life (Berkeley University of California Press, 1985) A. Etzioni, The Essential Communitarian Reader (Lanham, Md. Rowman and Littlefield Publishers, 1998). 

Actually, most of the definitions of life given in the literature comply to the above operational description. In the following pages, the term dehnition is used mostly as a way of habit, meant however in the above epistemological context. 

Rumford s approach to science was pragmatic rather than academic. He once observed that a habit of keeping the eyes open to every thing that is going on in the ordinary course of the business of life has oftener led to. .. sensible schemes for investigation and improvement than all the more intense meditations of philosophers in the hours expressly set aside for study. ... 

Since the introduction of modern medicine and better health habits, the average life expectancy of humans has increased dramatically—in the United States from about 48 years in 1900 to about 78 years in 2000.The maximum attainable human life span of about 120 years, however, appears to have remained fairly constant. Is there truly a limit to how long we can live Is it possible to change how long we live while still maintaining a youthful vigor and resilience After all, the quality of life matters just as much, if not more, as the quantity of life. 

The candy industry uses lactose to achieve desirable characteristics in certain types of candies. It changes the crystallization habits of other sugars present and improves body, texture, chewiness, or shelf life. 

The use of pheromones is particularly attractive because of the high selectivity of the method, enabling the destruction of pests by way of large reductions m future populations and doing this without interfering with the normal life and habits of beneficial insects. 

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