Stress Theory of Aging
Stress theory of aging investigates the relationships between aging and biological/psychological stress. It studies how aging occurs at the cellular and molecular levels under the influences of stress (Lavretsky and Newhouse 2012).
Normal aging involves a gradual breakdown of physiological processes that leads to a decline in cognitive functions and brain integrity. Oxidative stress has been shown to be a key mechanism of the aging process that can cause direct damage to the cellular architecture within the brain (Mariani et al. 2005; Muller et al. 2007). Research has demonstrated that oxidative stress plays an important role in age-related Alzheimer’s disease, cerebrovascular disease, and decline of cognitive functioning (Fiorito et al. 2018; Zalba et al. 2007; Moreira et al. 2005; Perry et al. 2002).
People in older age also experience some typical age-related psychological stressors, such as chronic illnesses, cognitive...
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