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Class 12 · Biology · Chapter 7

Human Health and Disease

Human Health and Disease looks at what keeps us well and what makes us ill. It covers the common infectious diseases of humans and the pathogens behind them (from typhoid and pneumonia to malaria, amoebiasis, filariasis and ringworm), the body's defences through innate and acquired immunity, vaccination, allergies and autoimmunity, and then three major health challenges — AIDS, cancer, and drug and alcohol abuse. Total: 17 sections including dedicated Solved Examples, Board and NEET practice, and a Summary.

17 sections · ~515 min read · Free, no login needed
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Topics in this chapter

  1. 1

    Health & Disease — What Being Healthy Means

    25 min read · Quiz included

  2. 2

    Common Bacterial & Viral Diseases

    30 min read · Quiz included

  3. 3

    Malaria & the Life Cycle of Plasmodium

    30 min read · Quiz included

  4. 4

    Other Common Diseases — Amoebiasis, Ascariasis, Filariasis & Ringworm

    30 min read · Quiz included

  5. 5

    Immunity — Innate Immunity & Its Barriers

    25 min read · Quiz included

  6. 6

    Acquired Immunity — Humoral & Cell-Mediated

    30 min read · Quiz included

  7. 7

    Active vs Passive Immunity, Vaccination & Immunisation

    25 min read · Quiz included

  8. 8

    Allergies, Autoimmunity & the Lymphoid Organs

    30 min read · Quiz included

  9. 9

    AIDS — HIV, Transmission, Replication & Diagnosis

    30 min read · Quiz included

  10. 10

    Cancer — Tumours, Causes, Detection & Treatment

    30 min read · Quiz included

  11. 11

    Drugs & Alcohol Abuse — Opioids, Cannabinoids & Coca Alkaloids

    30 min read · Quiz included

  12. 12

    Adolescence, Addiction & Dependence

    25 min read · Quiz included

  13. 13

    Effects of Abuse, Tobacco & Prevention

    30 min read · Quiz included

  14. 14

    Solved Examples

    50 min read

  15. 15

    Board Previous Year Questions

    55 min read

  16. 16

    NEET-Pattern Practice Questions

    25 min read · Quiz included

  17. 17

    Summary & Exam Tips

    15 min read