Cirrhosis is a disease caused by prolonged alcohol abuse - Edexcel - GCSE Biology - Question 8 - 2018 - Paper 1

Cirrhosis is considered a non-communicable disease because it cannot be transmitted from one person to another. It's a result of long-term lifestyle factors, such as excessive alcohol consumption, rather than an infectious agent.

Exercise contributes to weight loss by increasing the number of calories the body burns. When exercising, the body uses stored fat as energy, which can lead to a decrease in overall body weight. Additionally, regular physical activity helps to boost metabolism and maintain muscle mass, further aiding in weight management.