Tuesday 28 January 2020
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business-standard - 2 month ago

Stress in early life extends lifespan in worms: Study

Some stress at a young age may actually lead to a longer life, according to a study conducted in worms. Researchers at the University of Michigan in the US have discovered that oxidative stress experienced early in life increases subsequent stress resistance later in life. Oxidative stress happens when cells produce more oxidants and free radicals than they can deal with. It is part of the ageing process, but can also arise from stressful conditions such as exercise and calorie restriction, according to the study published in the journal Nature. Examining a type of roundworm called C. elegans, the scientists found that worms that produced more oxidants during development lived longer than those that produced fewer oxidants. Researchers have long wondered what determines variability in lifespan, said Ursula Jakob, a professor at University of Michigan. One part of that is genetics: If your parents are long-lived, you have a good chance for living longer as well. Environment is another


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