Unit 1 • The human body and its defences
• Anatomy and physiology
• A complex structure
• The immune system
• Immunity
• The cells of the immune system
• Vaccines
Unit 2 • Diseases
• Disorders of the immune system
• Neurodegenerative diseases
• More diseases affecting the brain and the nervous system
• Cardiovascular diseases
• Diabetes
Unit 3 • Addictions
• Smoking
• Alcohol
• Drugs
• Teens and smartphones: an addiction?
