The solution for exercise 5 in chapter 6.5 - Listening and Vocabulary of Wider World 4 - Student's Book by Suzanne Gaynor, Kathryn Alevizos and Carolyn Barraclough
Question
Listen again. Answer the questions.
Answer
because they are good for our physical health (great workout, exercise different muscles, good for lungs, heart and circulation) and mental health (improve mood and confidence and reduce stress)
people who are unfit or have (serious) medical problems