Presbyopia results in loss of visual acuity. Presbycusis results in the loss of hearing acuity

In middle adulthood, the brain processes information differently. Processing speed slows because of increased distractibility and cortical activation during cognitive tasks, while the positivity effect causes greater cognitive attention to positive stimuli

presbyopia — age-related loss of visual acuity. presbycusis — age-related hearing loss. allostatic load — cumulative health toll of stressors, including the body’s biological response and secondary health impacts of stress-related changes to behaviors. relativism — recognizing that some problems or dilemmas may have more than one viable solution, depending on a person’s perspective and priorities.