The process of becoming older, a process that is genetically determined and environmentally modulated.


The AARP Web site maintains a valuable source of information about aging and the concerns of people ages 50 and older, with four main areas of interest: Health and Wellness, Economic Security and Work, Long-term Care and Independent Living, and personal enrichment.

Administration on Aging

The Administration on Aging's Web site provides links to an array of organizations and online publications that address different aspects of aging, such as health, retirement and financial planning, housing concerns, elder abuse, exercise, and medicare rights.

American Society on Aging

The American Society on Aging provides comprehensive information about topics in the field of aging. The Society offers print and online publications; information about related events and conferences; and specific resources for members, students, and the media.

APA Online: Aging Issues Homepage

The American Psychological Association’s Office on Aging provides online resources for a broad audience, including seniors and their families, policymakers, and healthcare professionals. A wide range of free brochures, guides, and other helpful resources are available.


ElderWeb is a research site for professionals and family members looking for information on eldercare and long term care. The site includes links to information about legal, financial, medical, and housing issues, as well as policy, research, and statistics.

FirstGov for Seniors

FirstGov is a useful general government resource guide for senior citizens. It offers links to validated sites in a variety of areas including health, education and training, retirement planning, tax assistance, work and volunteer opportunities, and travel and leisure.

Health in Aging

The American Geriatrics Society Foundation for Health in Aging sponsors this go-to site for information about aging and health, geriatric care, medications, and care options.

National Institute on Aging (NIA)

The NIA supports and conducts genetic, biological, clinical, behavioral, social, and economic research related to the aging process. Its site contains a wealth of information about the aging process, including age-related diseases, for older adults, families, caregivers, and research scientists.

NRTA: AARP's Educator Community

The NRTA: AARP's Educator Community site provides articles and resources about a variety of topics, including health, education, and travel. The "Staying Sharp" series contains hints on maintaining cognitive fitness at age 50+, while links to local Retired Educators Associations connect visitors to active and retired teachers in their area.

Successful Aging and the Brain

The Dana Alliance for Brain Initiatives' Successful Aging and the Brain program includes live public forums, printed and printable resources, and videos.

Dana Articles

Air Pollution Also Not Good For Your Brain

Recent research provides strong evidence that pollutants cause harms, and suggests underlying pathways and mechanisms. 

Aging: Replace or Repair?

Medical problems ranging hearing loss to Alzheimer's disease can be treated with a "replacement parts" or "extended warranty" strategy.

The Age Gauge: Older Fathers Having Children

By: Brian M. D’Onofrio, Ph.D., and Paul Lichtenstein, Ph.D.

Is there a link between a father’s age and his child’s vulnerability to psychiatric problems? Two recent studies suggest that children born to middle-aged men are more likely than their older siblings to develop a range of mental difficulties, including bipolar disorder, autism, and schizophrenia.

What is ‘Healthy’ Cognitive Aging?

Even without a disease such as Alzheimer’s, the aging brain does show signs of wear. Researchers look to the molecular level to see if they can slow the ‘normal’ progress.

Big Data on Healthy Brain Aging

To tease out what distinguishes the aging brain from the diseased brain, researchers are collecting reams of data, from types of neurons in the brain to changes in people’s behavior.

Turning Down the Aging ‘Rheostat’ in Mice

Researchers find that manipulating a region in the hypothalamus dramatically extended the lifespan of mice. Might such a tweak extend life and health in humans, too?