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Hypokinetic Disease: So, despite the suggestion of a natural predisposition towards phys¬ical activity in the early years of life, evidence would seem to indi¬cate that current levels of activity are inadequate to ensure health gains in young children. Hypokinetic diseases (disease related to a lack of physical activity) are being witnessed in increasingly younger children, including coronary heart disease, obesity, hypertension (high blood pressure), hypercholesterolemia (high blood cholesterol), osteo-porosis (brittle bones), diabetes, back pain, postural problems, stress, anxiety and depression (Biddle and Biddle 1989). Each can lead to a reduced quality of life and some are life-shortening.
Thus, this kind of heart disease has been practically eradicated, al¬though rare cases are still encountered in elderly people. Other endocrine disorders affecting the heart are very rare.
Congenital Heart Disease. With the increasing control of rheumatic heart disease it is probable that congenital cardiovascular disease will soon outstrip it in incidence, and with the increasing control of high blood pressure, congenital heart disease will take second place. An interesting statistical fact is that in the 1920's, T. Duckett Jones and Paul Dudley White found that con¬genital heart disease made up only 1.5% of all of 3,000 patients with Signs or symptoms of heart disease.See Also Other Disease:Since coronary heart other disease has become a leading cause of death in young and middle-aged men in the United States and since there is no really effective cure for it, either surgical or medical, it is essential that the causes of the other disease be appraised so that preventive measures can be devised. Studies show that several factors are involved in coronary heart other disease, with no single cause being entirely responsible, but the degree of responsibility of each of the many causes is not known.
He maintained that the causes of heart other disease deserve first priority since the prevention of heart other disease, the ulti¬mate goal, depends upon determining the causes. In a follow-up to this article, the American car-diologist Paul Dudley White published the first edition of his textbook Heart other disease (1931), emphasizing the etiological, or causative, diag¬nosis first, followed by structural and functional diagnoses in that order.
On The Other Hand See Carrier Of Disease:The presence of carrier of disease with the radioisotope often undesirable. This may be because a gh specific activity is needed or because carrier of disease otopes have nuclear properties which are in-lerable in the particular application. In these ises several methods of carrier of disease-free separation ay be used. Probably one of the most widely jplicable methods uses a column filled with ion-tchange resin.
In frequency modula¬tion the modulating signal changes the frequency of the carrier of disease wave while the amplitude of the carrier of disease remains constant (unchanged). Thus, change of frequency rather than change of am¬plitude (as in AM systems) is the information-bearing characteristic of the modulated carrier of disease. |
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