BioNotes
Class 6

The Health and Hygiene

Note on The Health and Hygiene

Health and Hygiene

Types of Diseases

Diseases can be broadly categorized into:

  • Communicable Diseases: Diseases that can be transmitted from one person to another, or from animals to humans. They are caused by pathogens (germs) like bacteria, viruses, protozoa, and worms.
    • Bacterial Diseases: Caused by bacteria (e.g., Tuberculosis, Typhoid, Cholera).
    • Viral Diseases: Caused by viruses (e.g., Common Cold, Flu, Measles, Chickenpox).
    • Protozoal Diseases: Caused by protozoa (e.g., Malaria, Amoebic Dysentery).
    • Diseases Caused by Worms: Caused by parasitic worms (e.g., Ascariasis, Filariasis).

Modes of Transmission of Diseases

Communicable diseases can spread through various ways:

  • Direct Contact: Touching an infected person, kissing, sexual contact.
  • Indirect Contact: Touching contaminated objects (doorknobs, toys, clothes).
  • Droplet Transmission: Through coughs or sneezes (e.g., cold, flu).
  • Airborne Transmission: Pathogens remain suspended in the air for longer periods (e.g., Tuberculosis).
  • Vector-borne Transmission: Transmitted by living organisms (vectors) like mosquitoes (Malaria, Dengue), flies (Typhoid), or ticks.
  • Water-borne Transmission: Through contaminated water (e.g., Cholera, Typhoid).
  • Food-borne Transmission: Through contaminated food (e.g., Food poisoning).

Ways to Prevent Communicable Diseases

  • Personal Hygiene: Regular hand washing, bathing, brushing teeth.
  • Public Hygiene: Proper disposal of waste, sanitation, clean drinking water supply.
  • Vaccination: Immunization against specific diseases.
  • Isolation: Separating infected individuals to prevent spread.
  • Vector Control: Controlling populations of disease-carrying vectors (e.g., mosquito control).
  • Safe Food and Water: Ensuring food is cooked properly and water is clean.
  • Healthy Lifestyle: Balanced diet, regular exercise, adequate rest to boost immunity.

Hygiene

Hygiene: Practices conducive to maintaining health and preventing disease, especially through cleanliness.

Examples of Hygiene Practices

  • Washing hands with soap and water before eating and after using the toilet.
  • Bathing daily.
  • Brushing teeth twice a day.
  • Keeping nails short and clean.
  • Covering mouth and nose when coughing or sneezing.

Ways to Keep the Surroundings Clean

  • Safe Disposal of Garbage: Proper segregation of waste (biodegradable and non-biodegradable) and disposing of it in designated bins.
  • Regular Cleaning: Sweeping, mopping, and dusting homes and public places regularly.
  • Drainage Systems: Ensuring proper functioning of drainage and sewage systems to prevent water stagnation.
  • Pest Control: Controlling pests like mosquitoes, flies, and rodents.
  • Clean Public Spaces: Avoiding littering in public areas.

Healthy Practices for Hygiene

  • Using clean utensils for cooking and eating.
  • Storing food properly to prevent contamination.
  • Drinking boiled or filtered water.
  • Avoiding open defecation.
  • Maintaining cleanliness in schools and workplaces.
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Created by Titas Mallick

Biology Teacher • M.Sc. Botany • B.Ed. • CTET Qualified • 10+ years teaching experience