Louise Aronson: “On the surface, Trump seems stronger and less vulnerable than Biden did. Yet looks do not necessarily reflect risk for illness and disability. A hallmark of advanced age is its variability: One person may be physically powerful but have dementia; another might have hearing loss but no cognitive changes; a third could have heart disease, diabetes, high blood pressure, and high cholesterol—physiologic time bombs that increase a person’s risk of major events such as heart attacks, strokes, and death.
”“And Donald Trump has lived in a way that raises his risk for heart and other serious diseases as he ages. For years, he has been overweight or obese, as measured by his BMI—which doesn’t distinguish between lean, muscular weight, and fat, meaning he is likely even less healthy than his abnormal BMI suggests. His gait, though better than Biden’s, demonstrates the same weakness of many lower extremity muscle groups, and his history of eschewing formal, particularly muscle-building, exercise means that his risk for falls and frailty is increasing more quickly than they would with resistance and balance training—recent signs that he might be adopting healthier habits notwithstanding. Equally important, fat on a body indicates fat in and around the body’s critical organs and blood vessels, including the brain and heart.”