It is necessary to create a foundation of understanding of the benefits and qualities of a lifetime of exercise.
A detailed breakdown would entail first:
'create a foundation of understanding'
This sets up the basis for the argument. A solid building block for what you are presenting. Mentioning 'understanding' allows you to remind them that knowledge of the subject is important.
'benefits and qualities'
Noting that this is a strong positive is paramount. Benefit implies an advantage, and qualities implies a high standard.
'lifetime of exercise'
Allowing them to know that this is commitment is important. It can seem daunting but with the previous mentions of 'benefit' and 'understanding' you can stress that this is something that can be accomplished and worked towards at a reasonable pace.
Together it should be used to focus on the positive aspects, to imply that this is a worthwhile goal that is achievable with little drawback.