With regard to aging, resistance may or may not be futile. In either case, it makes sense to attend to the various matters which are implied by the aging process. Like any sort of planning process, it is better to think about these matters sooner than later, but a little bit of planning is always better than none at all.
The good news about retirement is that advances in science, technology, and living standards have led to longer life expectancies. You can expect longer retirement years than previous generations, which means more time with family and friends and more time to achieve your lifelong aspirations.
Remember to include your family in your retirement planning. They need to know your wishes, especially in regard to topics such as long-term care. Your family can be a great resource for further information and, more importantly, of support.
Good planning will help you avoid the pitfalls that many retirees face, giving you peace of mind as well as a greater probability of a comfortable retirement.
Most people who go through the process of planning for end-of-life issues find the experience valuable. We know that lifespans are continuing to increase, but regardless of your present state of health, the beginning of the later stages of life is the time to make plans for what you know to be inevitable. In addition to the list of standard items below, you may wish to look into prearranging (and even prepaying) for your funeral. This will be one less burden for your survivors to deal with. Another important chore is to make sure that all of your vital documents are organized intelligibly, with lists of their locations. Here is a link to a documents organizer to get you started.
Long-term care can become a significant issue in the later stages of life. You should determine whether obtaining insurance for this contingency is appropriate for you. Don't delay in the hopes that prices will come down -- the cost of this insurance only goes up as you age.
Please review the following list and consult the appropriate professionals to help you complete your planning as appropriate for your own circumstances.