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Lifes Battle for Health
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acid alcohol amount animals antitoxin artiﬁcial bacteria become blood vessels body bones brain breathing cancer carbohydrates cause cells cent child cold communicable diseases condition contains decrease deﬁciency deﬁnite develop diagnosis diet digestion diphtheria drinking early eating eggs especially Eustachian tube examination exercise eyes fatigue ﬁbers ﬁnd ﬁne ﬁngers ﬁrst ﬁsh ﬁve ﬂuid gland gonorrhea grow growth habits heart heat hookworm immunity increase individual infection inﬂammation inﬂuence intestinal iodine irritation keep lungs marriage menstruation mental milk mucous membrane muscles necessary nerve nervous system normal nose occur one’s organs ovum oxygen patient person physical physician play poison posture prevent produce protein removed result Schick test secretion serum sewage skin sleep smallpox smoking spinal sterile symptoms syphilis teeth temperature throat thyroid tion tissues tonsils treatment Trench mouth tube tuberculosis typhoid fever usually uterus vaccine vitamin worry