Followed by the last question,

How may the topic affect the lives of Canadians?

I know one reason is that as people age, there will be less people receiving medical attention.

What else can I add to make this sentence better?

All of us hope to live to old age. The topic affects all of us.

Thank you for your help.

if they don't give attention to seniors for health care, then the percentage of ppl living up to age will go lower.

hopes that helps ya out :)

Yes, it does. You've helped me alot this weekend. I appreciate your effort,thanks.

Second sentence is for @Sue.

You are very welcome, Thi.