physical, emotional and social health

Answer: Three physical health benefits: (1) Reduced risk of coronary heart disease - exercise strengthens the heart muscle, lowers blood pressure, increases HDL cholesterol and reduces fatty deposits in arteries. (2) Reduced risk of obesity - exercise burns calories and builds muscle mass, helping maintain a healthy energy balance and body weight. (3) Improved cardiovascular fitness - regular aerobic exercise increases VO₂ max, stroke volume and capillarisation, making the heart and lungs more efficient at delivering oxygen to working muscles.

Answer: Three physical health benefits: (1) Reduced risk of coronary heart disease - exercise strengthens the heart muscle, lowers blood pressure, increases HDL cholesterol and reduces fatty deposits in arteries. (2) Reduced risk of obesity - exercise burns calories and builds muscle mass, helping maintain a healthy energy balance and body weight. (3) Improved cardiovascular fitness - regular aerobic exercise increases VO₂ max, stroke volume and capillarisation, making the heart and lungs more efficient at delivering oxygen to working muscles.

Answer: Exercise improves emotional and mental health through several chemical mechanisms: (1) Serotonin - exercise stimulates the release of serotonin, a neurotransmitter that improves mood and reduces depression. Low serotonin is linked to depression. (2) Endorphins - the body's natural painkillers are released during exercise, creating a feeling of euphoria (the "runner's high"). (3) Dopamine - exercise releases dopamine, which creates a sense of reward and motivation. Additionally, exercise reduces cortisol (stress hormone) levels, provides a sense of achievement, and improves self-esteem and body image - all contributing to better emotional health.

Answer: Three social health benefits: (1) Teamwork - sport requires working together towards shared goals, e.g. a football team coordinating attacks and defending as a unit. (2) Making friends - joining a club introduces you to people with shared interests, e.g. a new member of a running club meeting others at weekly sessions. (3) Sense of belonging - being part of a team gives identity and community, e.g. wearing a club kit and representing your local area creates a feeling of being valued and included.

Answer: Regular exercise reduces the risk of type 2 diabetes by: improving the body's sensitivity to insulin, meaning cells can more effectively absorb glucose from the blood; using glucose for energy during physical activity, which directly lowers blood sugar levels; helping maintain a healthy body weight, as obesity is a primary risk factor for type 2 diabetes; and building muscle mass, which increases the body's capacity to store and use glucose, keeping blood sugar levels more stable over time.

Answer: This statement is supported by research showing that regular exercise can be as effective as antidepressant medication for mild to moderate depression. Exercise works through multiple pathways: serotonin release improves mood, endorphins reduce pain and create euphoria, dopamine provides reward and motivation, and the sense of achievement and routine combats the withdrawal and hopelessness of depression. Exercise also improves self-esteem, provides social interaction and reduces stress hormones. However, for severe depression, medication and professional therapy may still be necessary, and exercise should be part of a broader treatment plan rather than a complete replacement for medical care.

Answer: Sport combats social isolation by: providing regular, structured social contact through training sessions and matches, giving isolated people a reason to leave the house and interact with others; creating a sense of belonging through team membership and shared identity (e.g. wearing a club shirt, being part of a squad); introducing people to others with shared interests, making it easier to form friendships than in unstructured social settings; and providing a support network where members look out for each other's wellbeing. For example, an elderly person joining a walking group gains weekly social contact, friendship and a sense of community that combats the isolation they might otherwise experience living alone.