Aging

Definition

Aging is the process of becoming older, characterized by gradual changes in physical and physiological functions. It affects various bodily systems including neurological, endocrine, hematologic, pulmonary, musculoskeletal, and integumentary systems.

5 Must Know Facts For Your Next Test

1. Aging can lead to decreased neuronal function and cognitive decline due to oxidative stress and nutrient deficiencies.
2. Hormonal changes in aging can affect metabolism and insulin sensitivity, impacting endocrine health.
3. The aging process can alter blood composition and immune response, affecting hematologic wellness.
4. Older adults may experience reduced lung capacity and increased susceptibility to respiratory illnesses due to dietary deficiencies.
5. Muscle mass and skin elasticity decline with age, necessitating adequate protein intake for musculoskeletal and integumentary health.

Review Questions

• What are the effects of aging on neurological functions?
• How does aging impact endocrine health in terms of metabolism and insulin sensitivity?
• Why is nutrition important for maintaining hematologic wellness in older adults?

Related terms

Neurodegeneration:

Progressive loss of structure or function of neurons often seen in aging.

Sarcopenia:

Age-related loss of muscle mass and strength.

Oxidative Stress:

Imbalance between free radicals and antioxidants in the body leading to cellular damage.