Methuselah's Shawl

Origin
According to the Hebrew Bible, Methuselah is the oldest person, having purportedly lived to the age of 969. According to extra-Biblical tradition, he died seven days before the beginning of the Great Flood. Methuselah was the son of Enoch, the father of Lamech, and the grandfather of Noah.

Effects
Wearing grants extreme longevity, but the user must sacrifice their family members and friends. The user can recovery from injuries but at an extremely slow rate, as their metabolic rate is greatly reduced.