These comprehensive chapter-wise and topic-wise notes for Class 12 Biology Chapter 7, “Human Health and Disease,” provide a structured and detailed overview of the key concepts. From the basics of health and disease to the intricate mechanisms of the immune system and common ailments, these notes are designed to aid students in their understanding and preparation for examinations.






Arjun Das –
I feel more confident before exams. These notes cover all important points in a structured way.