Answer:
Everyone should exercise.
Step-by-step explanation:
This can be explained by Logical argument. An argument is a set of statements, where some statements 'premises' imply a further statement 'conclusion'
Given [Premises] : A person who does not exercise will not be healthy
A person who is not healthy will not lead a productive life.
[Conclusion] : A person who does not exercise doesn't lead a productive life.
So, Logically : Everyone should exercise for a healthy & hence productive life.