Health has three dimensions
Health has three dimensions

Health is a state of physical, mental and social wellbeing, not simply the absence of disease. A person can have no diagnosed disease but still have poor health in one or more of these areas.
Step-by-step lessons on Edexcel GCSE Biology 5.1.1 Communicable and non-communicable diseases. Each one builds up to exam-style questions. Start with the foundational topics and build up to the higher-tier material.