WHY DO WE FALL ILL!

CLASS 9

WHAT IS HEALTH ?• HEALTH IS A STATE OF COMPLETE PHYSICAL ,MENTAL AND SOCIAL WELL

BEING• IT DEPENDS UPON FOLLOWING:• 1.PROPER SANITATION • 2.PURE CLEANING WATER• 3.BALANCED DIET• 4.SOCIAL EQUALITY ETC

WHAT IS DISEASE

• DISEASE MEANS NOT COMFORTABLE. ONE OR MORE SYSTEM OF BODY WILL CHANGE WILL GIVE RISE TO SYMPTOMS LIKE LOOSE MOTIONS AND FEVER.• CLASSIFICATION OF DISEASES:• PHYSICAL : CAUSED BY DAMAGE TO BODY PARTS . LIKE: FRACTURE • MENTAL : CAUSED DUE TO BRAIN DAMAGE .LIKE: DEPRESSION• DEFICIENCY : CAUSED BY INADEQUATE DIET. LIKE: MARASMUS• INHERITED: CAUSED BY DEFECTIVE GENUS : LIKE : HAEMOPHILIA• SOCIAL : CAUSED BY SOCIAL INTERACTION : LIKE: ALCOHOLISM • INFECTIOUS : CAUSED BY ATTACK OF PATHOGENS: LIKE: TYPHOID

TYPE OF DISEASES

INFECTIOUS DISEASES NON INFECTIOUS DISEASES 1.THE DISEASES ARE BROUGHT BY EXTERNAL FACTORS 1. DISEASES ARE BROUGHT BY INTERNAL FACTORS2.THE CAN BE TRANSMITTED 2. THEY CANNOT BE TRANSMITTED3.DISEASES ARE CAUSED BY ATTACK OF PATHOGENS. 3. DISEASES ARE CAUSED BY OTHER FACTORS 4.EXAMPLE: COMMON COLD 4.EXAMPLE:GOITER

CHRONIC DISEASES AND ACUTE DISEASES

ACUTE DISEASES ARE THOSE DISEASES WHICH LAST FOR A SHORT PERIOD OF TIME AND THE PATIENT COMPLETELY RECOVERS AFTER TREATMENT. THEY CAUSE A LONG TERM EFFECT. WHEREAS CHRONIC DISEASES ARE THOSE DISEASES WHICH LAST FOR A LONG TERM AND PATIENT MAY OR MAY NOT COMPLETELY RECOVER AFTER TREATMENT. THEY DO NOT CAUSE A LONG TERM EFFECT.

CONGENITAL AND ACQUIRED DISEASES CONGENITAL DISEASES ARE THOSE DISEASES WHICH ARE PRESENT FROM BIRTH . LIKE GENETIC DISORDER AND ACQUIRED DISEASES ARE THOSE DISEASES WHICH DEVELOP AFTER BIRTH LIKE :MARASMUS

MEANS OF SPREAD OF DISEASES • AIR BORN DISEASES: DISEASES WHICH ARE TRANSMITTED THROUGH AIR ARE

KNOWN AS AIR BORN DISEASES • WATER BORN DISEASES : DISEASES WHICH ARE CAUSED THROUGH WATER

ARE CALLED WATER BORN DISEASES • VECTOR BORN DISEASES : DISEASES WHICH ARE CAUSED/TRANSMITTED

THROUGH VECTORS FROM A DISEASED PERSON TO A HEALTHY PERSON ARE CALLED AS VECTOR BORN DISEASES.

ANTIBIOTICS! AND HOW DO THEY WORK?

ANTIBIOTICS ARE CHEMICALS PRODUCED BY MICROORGANISMS WHICH ARE IN A VERY LITTLE CONCENTRATION WHICH HAVE ABILITY TO DESTROY PATHOGENS.SOME BACTERIA'S FORM A CELL WALL TO PROTECT THEMSELVES . ANTIBIOTICS BLOCK THEIR CHEMICAL PROCESSES OF FORMING CELL WALL AND BLOCK THEIR BIOCHEMICAL PATHWAYS . IT IS HARDER TO MAKE ANTIVIRAL MEDICINES THAN ANTIBACTERIAL MEDICINES BECAUSE VIRUSES HAVE A VERY FEW BIOCHEMICAL MECHANISMS OF THEIR OWN. OTHER MEDICINES REDUCES PAIN OR BRING DOWN FEVER ETC BUT TO CONSERVE ENERGY WE CAN TAKE BED REST.

TYPES OF ANITBIOTICS• 1. BROAD SPECTRUM ANTIBIOTICS : THEY HELP TO KILL WIDE RANGE OF

BACTERIA

• 2. NARROW SPECTRUM ANTIBIOTICS : THEY ARE EFFECTIVE AGAINST ONLY A FEW TYPES OF BACTERIA.

PRINCIPLES OF PREVENTION OF TREATMENT

• 1.PUBLIC HYGIENE IS ONE OF THE BASIC KEY TO THE PREVENTION OF DISEASES

• 2.ACESSS TO SAFE DRINKING WATER AND CLEAN ENVIRONMENT

• 3.DEVELOPMENT OF IMMUNITY BY IMMUNISATION

• 4.AVAILABILITY OF PROPER AND SUFFICIENT FOOD FOR EVERYONE

IMPORTANT TERMS • 1.PATHOGENS: A BACTERIUM, VIRUS, OR OTHER MICROORGANISM THAT CAN

CAUSE DISEASE. IS KNOWN AS A PATHOGEN.• 2. IMMUNISATION: IT IS THE PROCESS IN WHICH A WEAK PATHOGEN IS

INTRODUCED INTO THE BODY SO THAT BODY CAN DEVELOP IMMUNITY AGAINST IT.• 3.INFLAMMATION: THE AUTOMATIC RESPONSE OF THE BODY LIKE FEWER ,

SWELLING ETC TOWARDS AN INFECTION IS KNOWN A INFLAMMATION.

THANK YOU

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