Unit 87: Common Diseases and Preventive Health

1. Introduction to Common Diseases

• Definition of common diseases
• Causes: biological, environmental, lifestyle factors
• Impacts on individuals: physical, psychological, social
• Community and public health implications

2. Infectious Diseases

2.1 Pathogens and Types

• Bacteria
• Viruses
• Fungi
• Parasites

2.2 Modes of Transmission

• Direct contact
• Airborne
• Vector-borne
• Contaminated food and water

2.3 Preventive Measures

• Hygiene practices
• Vaccination
• Quarantine and isolation
• Use of personal protective equipment (PPE)

3. Chronic Diseases

3.1 Overview of Chronic Conditions

• Heart disease
• Cancer
• Diabetes

3.2 Risk Factors

• Genetics
• Lifestyle (smoking, diet, physical inactivity)
• Environmental exposures

3.3 Management Strategies

• Medication adherence
• Lifestyle modifications
• Regular monitoring and check-ups

3.4 Impact on Quality of Life

• Physical limitations
• Emotional and psychological effects
• Economic burden

4. Respiratory Diseases

4.1 Common Respiratory Disorders

• Asthma
• Chronic Obstructive Pulmonary Disease (COPD)
• Pneumonia

4.2 Symptoms

• Shortness of breath
• Coughing
• Wheezing

4.3 Treatments

• Medication (inhalers, antibiotics)
• Oxygen therapy
• Pulmonary rehabilitation

4.4 Prevention

• Avoidance of pollutants and allergens
• Smoking cessation
• Vaccination against influenza and pneumococcal disease

5. Cardiovascular Diseases

5.1 Common Conditions

• Hypertension
• Coronary artery disease
• Stroke

5.2 Risk Factors

• High blood pressure
• High cholesterol
• Obesity
• Sedentary lifestyle

5.3 Preventive Measures

• Healthy diet
• Regular exercise
• Stress management
• Smoking cessation

6. Mental Health Disorders

6.1 Common Mental Illnesses

• Depression
• Anxiety disorders
• Bipolar disorder
• Schizophrenia

6.2 Signs and Symptoms

• Mood changes
• Behavioral changes
• Cognitive impairments

6.3 Treatments

• Psychotherapy
• Medication
• Support groups

6.4 Stigma Reduction

• Education and awareness campaigns
• Encouraging open dialogue
• Promoting mental health literacy

7. Nutritional Disorders

7.1 Diseases Caused by Poor Nutrition

• Obesity
• Malnutrition
• Eating disorders (anorexia, bulimia)

7.2 Causes and Risk Factors

• Socioeconomic factors
• Cultural influences
• Psychological factors

7.3 Importance of Balanced Diet

• Macronutrients and micronutrients
• Dietary guidelines
• Role in disease prevention

8. Environmental Diseases

8.1 Influence of Environment on Health

• Pollution-related illnesses (respiratory, cardiovascular)
• Waterborne diseases
• Effects of climate change on health

8.2 Prevention and Mitigation

• Environmental regulations
• Clean water and sanitation
• Community awareness and action

9. Genetic Disorders

9.1 Inherited Conditions

• Cystic fibrosis
• Sickle cell anemia
• Down syndrome

9.2 Genetic Mutations and Inheritance Patterns

• Autosomal dominant and recessive
• X-linked inheritance

9.3 Genetic Counseling

• Purpose and process
• Ethical considerations
• Supporting affected families

10. Preventive Health Measures

10.1 Vaccination

• Types of vaccines
• Immunization schedules
• Herd immunity

10.2 Regular Screenings

• Blood pressure, cholesterol, glucose tests
• Cancer screenings (mammograms, colonoscopy)

10.3 Healthy Lifestyle Habits

• Balanced diet
• Physical activity
• Avoidance of tobacco and excessive alcohol

10.4 Public Health Initiatives

• Disease surveillance
• Health education programs
• Policy and legislative measures