As the name suggests, you choose the level of cover but the policy can last until the day you die, without undergoing any further medical evidence. Whole of life cover is more expensive than Term Assurance, as a cash value accumulates to offset the increase in the cost of the life cover in later years. Many of these policies are subject to reviews at which time the benefit amounts can decrease significantly to maintain the existing premium or the premium can increase significantly to maintain the existing benefits. In later years, these policies can become extremely expensive and in some cases unaffordable. An alternative to these would be Term policies which would of course have an end date. See published article on these policies.