Scientists discovered that a blood protein called NfL rises with age and may help predict lifespan in animals and humans.

The protein "neurofilament light chain" (NfL) – studied in humans in the context of neurodegenerative diseases and aging – is also detectable in the blood of numerous animals, and NfL levels increase ...

Are you thinking of adopting a pair of guinea pigs? Taking on a new pet is a huge commitment, and one of the first things we should consider is lifespan. So, how long do guinea pigs live? You’ll be ...