Dear Liz: My mother and her insurance agent swear by whole-life insurance policies. I am 45 and have heard from everyone else to only have term life, which is what my husband and I both have. We have a 15-year-old daughter. Can you please put in layman’s terms what a whole-life policy is and what the benefits are?

Answer: Term insurance provides a death benefit if you die during the “term” of the policy. Term insurance provides coverage for a limited time, such as 10, 20 or 30 years. It has no cash value otherwise and you can’t borrow money against it.

Whole-life policies combine a death benefit with an investment component. The investment component is designed to accumulate value over time that the insured person can withdraw or borrow against. Whole-life policies are often called a type of “permanent” life insurance, since they’re designed to cover you for life rather than just a designated period.

If you need life insurance — and with a daughter who is still a minor, you certainly do — the most important thing is to make sure you buy a big enough policy to cover the financial needs of your dependents. This is where whole-life policies can be problematic, since the same amount of coverage can cost up to 10 times what a term policy would cost. Many people find they can’t afford sufficient coverage if they buy permanent insurance. Also, many people don’t have a need for lifetime insurance coverage. Once your kids are grown and the mortgage is paid off, your survivors may not need the coverage a permanent policy would provide.

If you are interested in a whole-life policy, make sure to run it by a fee-only financial planner who can objectively evaluate the coverage to make sure it’s a good fit for your circumstances.