Which of the following systems shows the least overall decline due to aging?

A) Muscular system
B) Endocrine system
C) Integumentary system
D) Reproductive system
E) Urinary system

Endocrine System

The collection of glands that produce hormones, regulating processes like growth, metabolism, and reproduction.

Overall Decline

A general decrease or deterioration in condition, quality, or level over time.

Aging

The natural and gradual process of becoming older, involving biological, physiological, environmental, and psychological changes.