Class 12 · Human Health and Diseases

Evolution of Health Concept — NEET Biology

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Health, for a long time, was considered as a state of body and mind where there was a balance of certain 'humors'. This is what early Greeks like Hippocrates as well as Indian Ayurveda system of medicine asserted. It was thought that persons with 'blackbile' belonged to hot personality and would have fevers. This idea was arrived at by pure reflective thought. The discovery of blood circulation by William Harvey using experimental method and the demonstration of normal body temperature in persons with blackbile using thermometer disproved the 'good humor' hypothesis of health. In later years, biology stated that mind influences, through neural system and endocrine system, our immune system and that our immune system maintains our health. Hence, mind and mental state can affect our health. Of course, health is affected by –

NCERT Biology · Class 12 · Chapter 7 · Paragraph 4
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Match the following: Column I A. Hippocrates and Ayurveda B. Black bile theory C. William Harvey D. Thermometer use E. Neural and endocrine system Column II 1. Disproved ‘good humor’ hypothesis by showing normal temperature 2. Balance of humors defines health 3. Experimental method discovery of blood circulation 4. Suggested hot personality and fever linked to black bile 5. Influence immune system and maintain health

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Correct answer: A A–2, B–4, C–3, D–1, E–5

A–2: Early Greeks like Hippocrates and Indian Ayurveda considered health as a balance of humors. B–4: People with “black bile” were thought to have hot personalities and fever. C–3: William Harvey disproved this idea through experimental method and discovery of blood circulation. D–1: Thermometer showed normal body temperature in people with black bile, further disproving the theory. E–5: Later biology explained that neural and endocrine systems influence the immune system to maintain health. Thus, the correct match is A–2, B–4, C–3, D–1, E–5.

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What does NCERT say about Health for long time?
Health, for a long time, was considered as a state of body and mind where there was a balance of certain 'humors'. This is what early Greeks like Hippocrates as well as Indian Ayurveda system of medicine asserted.
Has this concept appeared in NEET?
Practice this NCERT concept with questions on MedicNEET.
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Human Health and Diseases, Class 12 NCERT Biology.

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