There are many factors that go into determining life insurance rates in Toronto and elsewhere through-out Ontario and Canada. Age, gender and health are the obvious factors but insurance companies also look at things you can actually control. In the industry they are called Lifestyle choices.
Lifestyle choices are things like smoking, extreme sports, weight, driving records etc. Lifestyle choices can affect your insurance premiums both negatively and positively. For example if you workout, eat right and are fit you may be offered cheaper Preferred rates, conversely if you are a mad extreme sport maniac that smokes you will likely be rated, meaning you will have to pay more than standard rates.
http://insuranceadvantage.ca/getting-toronto-life-insurance-rates-to-suit-your-lifestyle-and-budget/