All of the terms mentioned refer to the same phenomenon: the increasing proportion of older adults (typically defined as those aged 65 and above) in a population.

As of 2023, Japan has the highest life expectancy in the world, with an average life expectancy of 84.6 years for men and 87.7 years for women.

Heart disease is the leading cause of death among older adults, accounting for approximately one-third of all deaths in this age group.

Medicare is a government health insurance program that provides coverage for older adults (aged 65 and above) and certain younger people with disabilities.

The Older Americans Act is a federal law that provides financial assistance, promotes the well-being of older adults, and supports research on aging.

Retirement communities, assisted living facilities, and nursing homes are all types of housing that are designed to meet the specific needs of older adults.

Successful aging, active aging, and healthy aging are all terms used to describe the process of adapting to the challenges and opportunities of aging in a positive and productive way.

Supplemental Security Income (SSI) is a government program that provides financial assistance to low-income individuals, including older adults, who are blind, disabled, or have limited income and resources.

Long-term care, home care, and nursing home care are all terms used to describe the process of providing care for older adults who need assistance with activities of daily living, such as bathing, dressing, and eating.

The National Family Caregiver Support Program is a government program that provides financial assistance and support services to caregivers of older adults.

Aging in place, retirement planning, and estate planning are all terms used to describe the process of planning for the future needs of older adults.

Section 202 Supportive Housing for the Elderly, Section 8 Housing Choice Voucher Program, and Public Housing Program are all government programs that provide financial assistance to older adults who need help with housing costs.

Paratransit, dial-a-ride, and senior transportation are all terms used to describe the process of providing transportation services to older adults who are unable to drive.

Supplemental Nutrition Assistance Program (SNAP), Commodity Supplemental Food Program (CSFP), and Senior Farmers' Market Nutrition Program (SFMNP) are all government programs that provide financial assistance to older adults who need help with food costs.

Senior centers, adult day care, and congregate meals are all terms used to describe the process of providing social and recreational activities for older adults.