effects of climate changes on human health
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EFFECTS of CLIMATE CHANGES ON HUMAN HEALTH
Dr. Avinash BhondwePresident, Indian Medical
Association, 2008-09
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नै�नै� छि�न्दन्तिन् शस्त्रा�णि� Iनै�नै� दहति पा�वकः� II
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DEFINITION OF HEALTH
W.H.O. Definition- Physical, Mental &
Social Well-being & not merely absence of
Disease
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Climate & Seasons
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BODY TEMPERATURE CONTROL
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MAIN SYSTEMS OF HUMAN BODYRESPIRATORYMUSCULOSKELETALDIGESTIVECIRCULATORYNERVOUS SYSTEMSKIN & SOFT TISSUESPSYCHOLOGICAL
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Respiratory SystemThe Air is Inhaled in the body through
Respiratory Tract.That’s why it is affected most by
weather changes
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Respiratory SystemExtreme cold, More
Humidity, Wet Climate-
Sneezing, Cold Irritation & CoughPneumoniaCOPD, Chronic
Bronchitis
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Microscopic View Of Trachea, Bronchus, Bronchioles & Lungs
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Coughing out the Sputumis a protective mechanism
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Musculo-Skeletal System208 bones
656 to 850 Muscles
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Blood Supply to BonesBlood vessels
contract or dilate as per Climate Temperature
Cold causes constriction & Pain
Hot causes reliefJoint Pains, Fracture
Pains, Arthritis, Bony Pains
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Digestive System
Cold- increases Hot- Reduces AppetiteCold Causes
ConstipationHot causes
Dehydration Vomiting & Constitpation
Rainy Season- Gastroenteritis
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Circulatory SystemCold reduces
the Diameter of the Blood vessel causing reduced flow
Hot dilates the vessels causing perspiration & low B.P., dehydration
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Nervous SystemCold causes nerve
roots painHot causes burningCold stimulates brain
activityHot reduces the
speed of the processSun Stroke ,
Convulsions
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Skin ProblemsPerspiration in Hot &
wetness in Rainy season causes- Fungal Infections groins, clefts
Taenia PaedisSummer/ Cold RashesCracks of the Heels,
palmsExfoliation of skin & lipsDryness of skin in both
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Psychology & BehaviorHot causes
Confusion, Slow mentation, Drowsiness,
Hot increases Anger, Irritability
Severe cold causes apathy, lack of attention
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BETTER TEMPERATURE FOR GERMS
Ideal Temp: 15- 37 ^ C
Ideal Temp: 5- 37 ^ C
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Weather Changes & InfectionsColdFeversLoose Motions VomitingJoint PainsSkin ProblemsEye Problems
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Weather Changes & InfectionsFever is a part of
Immune Mechanism to abolish the germs causing infection
Fever Helps to kill Viruses & Bacteria by increasing the Temperature of the Body which is not favorable for the germs to grow.
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Hygiene – Climate- Health
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Infectious Diseases
Jaundice ( Infectious Hepatitis)Malaria, Dengue, ChikungunyaTyphoidH1N1Bacillary/ Amoebic DysenteryBronchial Asthma, Acute & Chronic
BronchitisPneumoniaLeptospirosis
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Direct & Indirect EffectsClimate & Weather changes cause-
Direct effects which are mainly Physiological
The indirect effects of Weather due to irresponsible Social Behaviour & Public Health Negligence – Result into Infectious Diseases & their Epidemics
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