Life insurance companies do a process called underwriting. What does that entail?
As a result of the underwriting process the life companies classify people, and determine which rate to charge -- the lowest -- "so called "Super Preferred", Preferred, Standard, or Rated and if so how much. The cost per dollar of life coverage may be as much as 10 times higher between Super Preferreds and highly rated. And in many cases companies decide they are not willing to insure an applicant at all. The more careful a company is the lower its prices usually are.