A minor injury, a serious infection, or even the flu can send the body down very different paths. Some people recover quickly, while others become severely ill or die. Scientists call this path a disease trajectory, and it can be shaped by many factors, including age, sex, health history, and biology.
At the Salk Institute, Janelle Ayres, PhD, has spent years studying why people respond so differently to illness and injury. Her work focuses on how the body can...

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