Sense of smell could predict longevity

Chalasani added that if the signaling between neurons ends up being important in how other organisms -including humans - age, then manipulating the nervous system may prove a fruitful way to minimize the effects of aging or rejuvenate brain functions. "There are a lot of questions that remain about what exactly is changing as an animal ages," says researcher Sarah Leinwand. "We want to keep looking at what is changing to cause some animals to have better functioning nervous systems and to live longer."

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