health and disease

Definition of Health

Refers to a state of complete physical, mental, and social well-being, not merely the absence of disease or physical fitness.

Importance of Health

Enhances work efficiency, productivity, longevity, and reduces mortality rates.

Factors Affecting Health

Include balanced lifestyle, diet, personal hygiene, exercise, yoga, disease awareness, vaccination, waste disposal, and vector control.

Types of Diseases

Infectious (easily transmitted, e.g., AIDS) and Non-Infectious (e.g., cancer, impacted by drug abuse).

Bacterial Diseases

Salmonella typhi causes typhoid fever, while Streptococcus pneumoniae and Haemophilus influenzae cause pneumonia.

Viral Diseases

Rhino viruses cause the common cold, while Protozoan Diseases like Malaria are caused by Plasmodium species.

Helminthic Diseases

Include Ascariasis and Elephantiasis caused by roundworms and filarial worms, respectively.

Immunity

Body's defense against disease-causing agents, with Innate Immunity (present at birth) and Acquired Immunity (developed over time).

Active and Passive Immunity

Active immunity develops after exposure to antigens, while passive immunity is acquired from outside the body.

Immunisation

Involves introducing vaccines to induce immune responses for long-term protection, with active and passive immunisation methods.

ELISA

Common diagnostic test for HIV

Anti-retroviral drugs

Treatment for HIV, partially effective in prolonging life

HIV replication in macrophages and TH cells

Leads to immune deficiency and susceptibility to infections

Prevention of AIDS

Crucial due to lack of cure, spread through conscious behavior patterns

National AIDS Control Organisation (NACO)

Initiative in India for AIDS prevention

Benign tumors

Localized, minimal damage

Malignant tumors

Rapid growth, invasion, metastasis

Carcinogens

Agents causing cancer, e.g., radiations, chemicals

Early detection

Crucial for successful cancer treatment

Predisposing Genes

Identification helps in prevention strategies

Combination Therapy

Cancer treatment with surgery, radiation, and chemotherapy

Nicotine

Key component in tobacco, impacts adrenal gland, causes various cancers

Addiction

Psychological attachment to drug effects, tolerance levels increase

Dependence

Body's tendency to show withdrawal symptoms when drug use stops

Intravenous drug use

Increases risk of infections like AIDS and Hepatitis B

Long-term effects of alcohol use

Damages nervous system, liver, affects fetus

Misuse of Drugs in Sports

Enhances performance but has severe side-effects

Prevention and Control of Alcohol and Drug Abuse Among Adolescents

Importance of proactive prevention strategies

Education and Counselling

Teach coping with problems and stresses, seek help from parents and peers

Seeking Professional Help

Utilizing psychologists, de-addiction programs for drug/alcohol abuse