AI predicted the level of death risk. How did it do that?

Researchers at Mass General Brigham have developed AI models that analyze facial features to predict cancer patients' survival chances and biological age. The study, published in "The Lancet Digital Health," indicates that AI can assess health risks based on facial characteristics, echoing observations made by Hippocrates. The models were trained on over 40 million images and demonstrated surprising accuracy in predicting mortality risk. However, experts caution that AI should not replace clinical evaluations and emphasize the need for further research to validate its effectiveness across diverse populations.