"Young fish that spent more of their waking hours being active tended to live longer than did more-sluggish fish. Young fish that restricted their sleep schedule to evening hours also reached a riper age than did those that slept more during the day."
"The findings suggest that even early-adulthood behaviour can predict future lifespan. The study also hints that it might be possible to estimate how ageing will unfold long before signs of disease emerge."
"Behaviour can be a handy way to understand ageing because it offers a window into an animal's internal state. It's a very powerful way to gain insight into the brain. But the relationship between behaviour, ageing and lifespan remains poorly understood, because tracking every single movement over an animal's lifespan is a huge challenge."
A study tracking African turquoise killifish from adolescence to death reveals that early-life sleep patterns and activity levels predict lifespan length. Young fish exhibiting higher activity during waking hours lived longer than sluggish counterparts. Fish that restricted sleep to evening hours reached older ages than those sleeping during daytime. Using 24-hour camera tracking and machine-learning analysis of 81 killifish, researchers identified behavioral patterns predicting longevity. These findings suggest early-adulthood behavior forecasts future lifespan and may enable aging predictions before disease symptoms emerge, offering new possibilities for understanding the complex relationship between behavior, genetics, environment, and aging.
#sleep-patterns-and-lifespan #activity-levels-and-longevity #behavioral-prediction-of-aging #fish-study-tracking #early-life-behavior-forecasting
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