Which Physical Change Is Not Typical for People Between 40

question 227

Multiple Choice

Which physical change is not typical for people between 40 and 70 years of age?

• A) A decrease in muscle
• B) An increase in wrinkles
• C) Thinning and graying hair
• D) An increase in metabolism

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Definitions:

Biological Clock

An innate mechanism in living organisms that controls the timing of behaviors and physiological processes.

Circadian Clock

An internal biological clock regulating the sleep-wake cycle and other physiological processes on roughly a 24-hour cycle.

Internal Clock

An innate mechanism that regulates physiological and behavioral functions in a roughly 24-hour cycle, also known as the circadian rhythm.

Pineal Gland

A small endocrine gland in the brain, secreting melatonin and involved in regulating sleep patterns.