As the population ages, so too does the workforce. The CDC estimates that nearly one quarter of American workers will be age 55 or older by 2018. These employees are also staying in the workforce, with many saying  that they are likely to continue working well past the traditional retirement age of 65. As a valuable asset, it is important that these employees stay healthy and productive. Use these three guiding steps to be sure your wellness program appeals to all ages, especially those in this category.