Physical Activity, mTOR Signaling, and Alzheimer's Disease
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Alzheimer’s disease is a condition that sits atop a mound of many contributing causes, layered in chains of cause and effect. Given that chronic inflammation and age-related impairment of the cellular housekeeping mechanisms of autophagy both appear to be significant, somewhere in the mix, it is perhaps to be expected that many of the usual healthy lifestyle choices have some modest impact on the progression of the condition. Exercise and calorie restriction both act to upregulate autophagy and it is thought that this accounts for a sizable fraction of the resulting benefits to health and life span. Unfortunately, the sort of stress response upregulation appears to scale down in impact on life span as species life span increases, though the effects on short term health and metabolism appear quite similar. Mice can live up to 40% longer when on a calorie restricted diet, but that is certainly not true for humans; we gain a few years at most.

Alzheimer’s diseasechronic inflammationautophagyExercise and calorie restriction both act to upregulate autophagycertainly not true for humansa few years at most

Autophagy recycles damaged structures and broken proteins inside the cell. Neurodegenerative conditions such as Alzheimer’s disease involve the presence of toxic molecules, such as those

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