As people age, they often focus on strength, mobility, and cardio to stay fit. However, reaction time is also an important skill that can decline with age. This decline can affect physical safety and cognitive health.

Reaction time refers to the interval between perceiving a stimulus and initiating a physical response. It is the speed of the nervous system's decision loop. Research has shown that this decline can begin as early as the 20s and accelerates after 60.

Further details on the importance of reaction-time training for older adults are available from the source, including its impact on daily life and how it can be incorporated into an exercise routine.