American Association of Retired Persons
The AArp provides information for seniors on a variety of topics, including health. It is especially useful for learning about Medicare, Social Security, health insurance, and drug coverage.
NIH Senior Health The National Institute on Aging publishes an outstanding site for seniors. It covers health problems that seniors face, fitness, how to take medicines correctly, and Medicare. Users may adjust the type size and contrast. There is also the option to listen to the information.