Actigraphy and the Science of Aging: Measuring the Strength of Daily Circadian Rhythms
As people age, subtle changes in sleep patterns, activity levels, and daily routines often reflect deeper biological shifts. Understanding these changes is central to modern aging research. One of the most valuable tools in this area is actigraphy, a method that uses wearable sensors to continuously track movement and rest cycles. Today, actigraphy monitoring devices are widely used by researchers and clinicians to study circadian rhythms in real world settings, offering insights that traditional sleep studies cannot easily capture. What Is Actigraphy? Actigraphy involves wearing a small device, typically on the wrist, that records movement over extended periods. Unlike laboratory based sleep assessments, actigraphy allows continuous monitoring during normal daily life. The resulting data provide a detailed picture of activity patterns, rest periods, and sleep timing. For aging research, this long term, non invasive approach is especially valuable. Older adults may experience fragmente...