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Walking is the number one health promoting physical activity for older adults.

Increased physical activity, such as walking, boosts positive emotions and personal and social resilience.

With increasing heat, as temperatures exceed 90°F for days, walking becomes dangerous, even deadly.

Walking helps combat loneliness and social isolation.

It is early July 2026; temperatures are above 90°F (32 degrees Celsius) for several consecutive days. Dina, who is 102 years old, has been unable to take her daily walk in the park near her home because of the extreme heat. After several days indoors, she begins to feel sluggish and lonely. Weather permitting, most mornings Dina drives the short distance to a large park near her home, where she walks a one-mile loop. During her walks, she regularly stops to chat with acquaintances she has come to know over the years, several of whom she also occasionally sees socially. These daily interactions are an important and enjoyable part of her day.

Dina has loving family and friends who she sees when their schedules permit. But her walk is at her discretion and under her control, weather permitting. Walking keeps her fit, provides her with regular social connection, and maintains a connection to her community. For Dina, the park is far more than a place to exercise, it is one of her lifelines. Her daily walk also helps protect her from loneliness and social isolation. At the same time, it reinforces a sense of control, optimism, and independence that have characterized her long life.

As periods of extreme heat become more frequent and prolonged, Dina is increasingly confined to her home. At her age, walking outdoors in temperatures above 90°F poses significant health risks, leaving her with few safe alternatives. Although she has always been energetic and optimistic, the loss of her daily walks and the resulting isolation are beginning to affect her mood and well-being.

Dina’s experience is not unique. Although at 102 she is amazing, studies inform us that older adults of all ages walk for well-being and social connection. In fact, walking is the most popular form of physical activity in later life. As Dina’s case illustrates, climate-related heat can undermine not only physical activity, but also social connections made during walking. According to AARP (2022)........

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