The main points that effect the cost of life cover are:
The probability of dying increases as we get older therefore Life companies asses this risk by looking at mortality rates showing the number of people per thousand that die in each age group.
Past and present health is taken into consideration when applying for life cover and may affect your premium.
Dealing with any tests or investigations before applying for cover will increase the chances of being accepted for cover.
A smoker has a much higher risk of death in most age groups so will receive a higher premium.
The good news is thought by stopping for a minimum of 12 months, when applying for a new policy you will receive the same premium as if you had never smoked in your life.