Human Health and Diseases — NEET Biology Concepts
Every Biology concept in Human Health and Diseases, explained around the doubts students actually search. Tap any concept for the full note with NCERT context and NEET traps.
- What Is Health and What Is a Disease? Meaning and Difference
- Infectious vs Non-Infectious Diseases: The Difference
- What Is a Pathogen? Meaning and Common Examples
- Typhoid: Salmonella typhi, Symptoms and the Widal Test
- Pneumonia: Causative Bacteria (Streptococcus, Haemophilus) and Symptoms
- Common Cold: Rhinoviruses and Why It Affects the Nose and Throat
- Malaria: Plasmodium Life Cycle, Sporozoite and Haemozoin
- Amoebiasis (Amoebic Dysentery): Cause and Symptoms
- Ascariasis and Elephantiasis (Filariasis): Ascaris and Wuchereria
- Ringworm: A Fungal Disease Caused by Trichophyton, Microsporum and Epidermophyton
- Disease and Causative Organism: How to Match Them (Bacteria, Virus, Protozoan, Fungus, Worm)
- How Infectious Diseases Spread: Modes of Transmission
- How to Prevent and Control Infectious Diseases
- What Is Immunity? The Body's Defence Explained
- Innate Immunity: The Four Barriers (Physical, Physiological, Cellular, Cytokine)
- What Is Acquired Immunity? Specificity and Memory
- Innate vs Acquired Immunity: Key Differences
- B-Lymphocytes vs T-Lymphocytes: Roles in Immunity
- Humoral (Antibody) vs Cell-Mediated Immunity
- What Is an Antibody? Structure (H2L2) and What an Antigen Is
- Types of Antibodies: IgG, IgA, IgM, IgE and IgD
- Primary vs Secondary Immune Response and Memory Cells
- Active vs Passive Immunity: The Difference with Examples
- Colostrum: Why Mother's First Milk Gives Babies Immunity (IgA)
- Vaccination and Immunisation: How Vaccines Work
- Antivenom vs Vaccine: Preformed Antibodies vs Antigen Injection
- Allergy: Cause, IgE, Histamine and Anti-Histamines
- Autoimmunity: When the Body Attacks Itself (Rheumatoid Arthritis, Myasthenia Gravis)
- Lymphoid Organs: Primary (Bone Marrow, Thymus) vs Secondary (Spleen, Lymph Nodes, MALT, Tonsils)
- MALT: Mucosa-Associated Lymphoid Tissue and Its 50% Share
- Graft Rejection: Why Transplanted Organs Are Rejected (Cell-Mediated Immunity)
- AIDS and HIV: The Retrovirus and Why HIV Is Not the Same as AIDS
- How HIV Replicates: Reverse Transcriptase and the Attack on Helper T-Cells
- How HIV Spreads and How AIDS Is Prevented (NACO)
- What Is Cancer? Normal Cells vs Cancer Cells and Loss of Contact Inhibition
- Benign vs Malignant Tumour and Metastasis
- Causes of Cancer: Carcinogens, Oncogenes and Proto-Oncogenes
- Cancer Detection (Biopsy, CT, MRI) and Treatment (Surgery, Radiation, Chemotherapy)
- Drugs and Alcohol Abuse: What "Abuse" and "Addiction" Mean
- Opioids: Morphine, Heroin (Smack) and the Poppy Plant
- Cannabinoids: Marijuana, Hashish and Cannabis sativa
- Cocaine (Coke/Crack): Coca Plant and Its Effect on the Nervous System
- Tobacco and Nicotine: Effects on the Heart and Lungs
- Addiction, Dependence and Withdrawal Syndrome
- Effects of Drug and Alcohol Abuse and How to Prevent It