{"id":7604,"date":"2026-03-06T12:28:43","date_gmt":"2026-03-06T12:28:43","guid":{"rendered":"https:\/\/www.chennaineet.com\/blog\/?p=7604"},"modified":"2026-03-06T13:26:12","modified_gmt":"2026-03-06T13:26:12","slug":"human-health-and-disease-ncert","status":"publish","type":"post","link":"https:\/\/www.chennaineet.com\/blog\/human-health-and-disease-ncert\/","title":{"rendered":"NCERT Book for Class 12 Biology &#8211; (Chapter 8 &#8211; Human Health And Disease)"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Chapter 8 &#8211; Human Health And Disease<\/h2>\n\n\n\n<p>The chapter <strong>Human Health and Disease<\/strong> explains the importance of maintaining good health and understanding the causes of various diseases. It covers the difference between health and disease, factors affecting health, and the role of nutrition, hygiene, and lifestyle in preventing illnesses. The chapter also introduces different types of diseases such as infectious and non-infectious diseases, along with examples like malaria, typhoid, and cancer. In addition, it discusses the human immune system, how the body defends itself against pathogens, and the role of vaccines and medicines in disease prevention and treatment. This chapter helps students understand how diseases spread, how they can be controlled, and the importance of public health measures in society.These concepts are important for both Class 12 board exams and <a href=\"https:\/\/www.kaashivinfotech.com\/blog\/which-online-platforms-provide-live-neet-coaching-classes-2026\/\" target=\"_blank\" rel=\"noopener\">NEET<\/a> preparation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Human Health and Disease NCERT<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-1-764x1024.jpg\" alt=\"\" class=\"wp-image-7625\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-1-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-1-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-1-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-1-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-1-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-1-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-1.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-2-764x1024.jpg\" alt=\"\" class=\"wp-image-7626\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-2-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-2-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-2-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-2-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-2-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-2-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-2.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-3-764x1024.jpg\" alt=\"\" class=\"wp-image-7627\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-3-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-3-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-3-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-3-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-3-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-3-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-3.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-4-764x1024.jpg\" alt=\"\" class=\"wp-image-7628\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-4-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-4-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-4-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-4-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-4-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-4-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-4.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-5-764x1024.jpg\" alt=\"\" class=\"wp-image-7629\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-5-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-5-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-5-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-5-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-5-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-5-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-5.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-6-764x1024.jpg\" alt=\"\" class=\"wp-image-7630\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-6-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-6-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-6-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-6-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-6-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-6-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-6.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-7-764x1024.jpg\" alt=\"\" class=\"wp-image-7631\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-7-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-7-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-7-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-7-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-7-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-7-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-7.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-8-764x1024.jpg\" alt=\"\" class=\"wp-image-7632\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-8-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-8-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-8-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-8-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-8-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-8-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-8.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-9-764x1024.jpg\" alt=\"\" class=\"wp-image-7633\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-9-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-9-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-9-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-9-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-9-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-9-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-9.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-10-764x1024.jpg\" alt=\"\" class=\"wp-image-7634\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-10-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-10-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-10-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-10-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-10-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-10-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-10.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-11-764x1024.jpg\" alt=\"\" class=\"wp-image-7635\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-11-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-11-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-11-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-11-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-11-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-11-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-11.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-12-764x1024.jpg\" alt=\"\" class=\"wp-image-7636\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-12-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-12-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-12-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-12-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-12-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-12-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-12.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-13-764x1024.jpg\" alt=\"\" class=\"wp-image-7637\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-13-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-13-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-13-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-13-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-13-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-13-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-13.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-14-764x1024.jpg\" alt=\"\" class=\"wp-image-7638\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-14-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-14-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-14-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-14-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-14-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-14-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-14.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-15-764x1024.jpg\" alt=\"\" class=\"wp-image-7639\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-15-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-15-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-15-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-15-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-15-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-15-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-15.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-16-764x1024.jpg\" alt=\"\" class=\"wp-image-7640\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-16-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-16-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-16-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-16-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-16-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-16-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-16.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-17-764x1024.jpg\" alt=\"\" class=\"wp-image-7641\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-17-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-17-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-17-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-17-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-17-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-17-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-17.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-18-764x1024.jpg\" alt=\"\" class=\"wp-image-7642\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-18-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-18-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-18-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-18-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-18-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-18-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-18.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-19-764x1024.jpg\" alt=\"\" class=\"wp-image-7643\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-19-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-19-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-19-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-19-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-19-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-19-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-19.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-20-764x1024.jpg\" alt=\"\" class=\"wp-image-7644\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-20-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-20-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-20-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-20-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-20-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-20-680x911.jpg 680w, 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https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-21-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-21-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-21.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-22-764x1024.jpg\" alt=\"\" class=\"wp-image-7646\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-22-764x1024.jpg 764w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-22-224x300.jpg 224w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-22-768x1029.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-22-1146x1536.jpg 1146w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-22-440x590.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-22-680x911.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Human-Health-And-Disease-22.jpg 1275w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/www.chennaineet.com\/blog\/stratagies-of-enhancement-in-food-production-ncert\/\">Chapter 9 &#8211; Stratagies For Enhancement in Food Production<\/a><\/strong><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Chapter 8 &#8211; Human Health And Disease The chapter Human Health and Disease explains the importance of maintaining good health and understanding the causes of various diseases. It covers the difference between health and disease, factors affecting health, and the role of nutrition, hygiene, and lifestyle in preventing illnesses. The chapter also introduces different types [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":7606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[134,135],"tags":[934,936,923,935,932,931,937,933],"class_list":["post-7604","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ncert-book","category-neet-biology","tag-class-12-biology-chapter-7-human-health-and-disease-ncert-solutions","tag-class-12-biology-chapter-8-pdf","tag-class-12-biology-human-health-and-disease-ncert-pdf","tag-class-12-biology-human-health-and-disease-ncert-solutions","tag-class-12-biology-microbes-in-human-welfare-ncert-pdf","tag-human-health-and-disease-class-12-ncert","tag-human-health-and-disease-class-12-notes","tag-human-health-and-disease-ncert-pdf-notes"],"_links":{"self":[{"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/posts\/7604","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/comments?post=7604"}],"version-history":[{"count":2,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/posts\/7604\/revisions"}],"predecessor-version":[{"id":7670,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/posts\/7604\/revisions\/7670"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/media\/7606"}],"wp:attachment":[{"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/media?parent=7604"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/categories?post=7604"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/tags?post=7604"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}