This document discusses how climate and weather affect the major human body systems and health. It outlines how extreme temperatures, humidity, and different seasons can impact the respiratory, musculoskeletal, digestive, circulatory, nervous, and skin systems, as well as psychology and behavior. Certain weather conditions are more conducive to the growth and spread of infectious diseases. Maintaining proper hygiene is important for health especially during climate changes.
14. Circulatory System
Cold reduces the
Diameter of the
Blood vessel
causing reduced
flow
Hot dilates the
vessels causing
perspiration & low
B.P., dehydration
15. Nervous System
Cold causes nerve roots
pain
Hot causes burning
Cold stimulates brain
activity
Hot reduces the speed of
the process
Sun Stroke , Convulsions
16. Skin Problems
Perspiration in Hot &
wetness in Rainy season
causes- Fungal
Infections groins, clefts
Taenia Paedis
Summer/ Cold Rashes
Cracks of the
Heels, palms
Exfoliation of skin & lips
Dryness of skin in both
17. Psychology & Behavior
Hot causes
Confusion, Slow
mentation, Drowsiness,
Hot increases
Anger, Irritability
Severe cold causes
apathy, lack of attention
20. Weather Changes & Infections
Fever 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.
23. Direct & Indirect Effects
Climate & 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