Studies Indicate That Individuals With This Blood Type Have a Higher Likelihood of Living to 100

also noted a U-shaped link for aspartate aminotransferase. Both very high and very low values are related to lower odds. That pattern tells us extremes can be risky for different reasons. Very low values can track with frailty or poor nutrition in some settings. Very high values can reflect injury. The paper did not claim exact cutoffs for clinical decisions. It compared relative positions within the cohort. Yet it makes common sense. Kidneys and liver support many systems. Therefore, sustained signs of strain in those organs would not help a person reach advanced ages. If a recent panel shows changes,