Category Archives: B1.1 Keeping healthy

How our bodies defend themselves against infectious diseases

Candidates should use their skills, knowledge and understanding to: ■ relate the contribution of Semmelweis in controlling infection to solving modern problems with the spread of infection in hospitals ■ explain how the treatment of disease has changed as a result of increased understanding of the action of antibiotics and immunity ■ evaluate the consequences of mutations of bacteria and viruses in relation to epidemics and

Read more

Diet and exercise

Healthy diet A healthy diet contains the right balance of the different foods you need and the right amount of energy. Carbohydrates, fats and proteins are used by the body to release energy and to build cells. Mineral ions and vitamins are needed in small amounts for healthy functioning of the body. Learning activity: use food labels to discuss saturated and unsaturated fats and

Read more