Jeralean Talley addresses the congregation as her pastor, Reverend Dana Darby, holds the microphone for her during a celebration of her 115th birthday. Rebecca Cook/Reuters /Landov hide caption

itoggle caption Rebecca Cook/Reuters /Landov

Caregivers who are trained in responding to anxiety or aggression in people with dementia can effectively reduce those symptoms, studies find. iStockphoto hide caption

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iStockphoto

Residents of ShantiNiketan, a retirement community near Orlando, Fla., walk in a Hindu religious procession. Courtesy of ShantiNiketan Inc. hide caption

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Barbara Beskind, 90, is a designer at IDEO who works with engineers on products that improve the quality of life for older people. Nicolas Zurcher/Courtesy of IDEO hide caption

itoggle caption Nicolas Zurcher/Courtesy of IDEO

Palliative medicine physician Michael Fratkin gets off a plane after visiting a patient on the Hoopa Valley Indian Reservation. He's recently launched a startup to support this kind of work. April Dembosky/KQED hide caption

itoggle caption April Dembosky/KQED

Donna Giron wheels through the halls of the nursing home she's lived in since May. Finding an affordable home of her own has been difficult. Sarah Jane Tribble/WCPN hide caption

itoggle caption Sarah Jane Tribble/WCPN

Donald Hall is a former U.S. poet laureate and was awarded the National Medal of Arts in 2010. Linda Kunhardt/Courtesy of Houghton Mifflin Harcourt hide caption

itoggle caption Linda Kunhardt/Courtesy of Houghton Mifflin Harcourt

Joyce Powell, 80, attends an exercise class at UT-Arlington with her husband, Thomas (right). Powell says she feels more confident in getting around and traveling since taking the classes. Dane Walters/KERA hide caption

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A Kenyan senior citizen leans on his cane. As people age in parts of Africa, they report declining levels of satisfaction with their life. Roberto Schmidt/AFP/Getty Images hide caption

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Gloria Gxebeka (left) visits Leona Mqhayi and types her health information into a cell phone Anders Kelto/NPR hide caption

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Bolivia is one of the poorest countries in the Western hemisphere, but its senior citizens all benefit from a guaranteed pension. Antonio Olmos/Courtesy of Age International hide caption

itoggle caption Antonio Olmos/Courtesy of Age International