Three Brazilian sisters—aged 103, 104, and 109—are drawing scientific attention after reports that they form a record-setting longevity trio with a combined age of more than 316 years. Multiple outlets say researchers are investigating what may explain their unusually long lives, focusing on whether genetics, lifestyle factors, or family environment play a role. The accounts describe ongoing efforts to determine whether biological inheritance could contribute to ageing well, or whether day-to-day habits and supportive family connections help them maintain health into advanced age. Scientists are portrayed as examining the sisters’ backgrounds as part of a broader attempt to understand extreme longevity. The reporting frames the sisters as a rare opportunity for research because their closely related relationship allows scientists to compare shared genetic factors alongside differences that may reflect lifestyle or environment. The studies discussed are presented as investigation efforts rather than confirmed conclusions, with researchers aiming to “decode” potential longevity mechanisms.