Like starting today for ten (10) years. This allows for risk calculations and the risk spread over time.
If you are younger the risk is usually lower and agreeing to a term like 10 years in principal allows you to subsidize the higher risk at the end by paying an average rate over the whole term.

Term Life Insurance is a pure risk insurance and pays in the event of death during the agreed period providing the payments are kept up to date.

Term Critical Illness escorts an agreed sum during the agreed period of cover in case of a critical illness.
Be aware if you have a heart attack this is a critical illness but you have to survive for a set period before this insurance pays anything. This can be 28 days or just 14 days. Should the insured person die before this period this insurance pays absolutely nothing. So be ware and be well advised.
Critical illness has become cheaper over the last years so it may be worth rechecking an existing contract.

Term Income Protection again comes with very different covers during the agreed period. This insurance may pay for 13 or 26 weeks for example. 

Compare Whole & Term Life Insurance Quote best life insurance quotes online, Whole life or term life insurance.

Whole-life insurance

Whole-life insurance provides for the payment of the face amount of the policy on the death of the insured, whenever it might occur. Premium payments are made during the entire lifetime of the insured person; this differs from limited-payment and endowment policies. All cash-value policies like whole life, endowment, and limited-payment life are required to provide values that cannot be lost should the insured terminate the policy. Such benefits provide that the insured may obtain the cash surrender value and terminate the policy; or the insured may obtain a paid-up whole-life policy in a reduced amount; or he or she may obtain term insurance for the full face amount of the policy for a specified period. A loan provision in all such policies permits the insured to borrow up to the full amount of the cash surrender value at any time, subject to specified limitations.

Whole of life insurance, as opposed to term insurance, lasts throughout your life so your dependants are guaranteed a payout. Not surprisingly it can cost substantially more than term assurance.

Most whole of life policies are escorted on a 'with profits' basis - that means you share in the profits made by the insurance company. These are usually added to the policy in the form of bonuses.

Care should be taken when considering whole of life policies: they can be attractive because they give you life cover and they have a surrender value at any time - but to get your hands on the surrender value you've got to cancel the policy, which means you lose the life cover.

In addition, some of these las vegas escorts are reviewable - you may find that after 10 years your insurance company decides that either your premiums are going to have to go up, or you are going to have to accept a cut in the level of cover.