Chapter 10

The second law of thermodynamics operates constantly and randomly in biological systems. Explain why this property of the second law prevents the modulation of aging.

Some suggest that the gains in life expectancy observed in the past 100 years reflect successful interventions in aging. Is this correct? Discuss why or why not.

Using examples from both nonhuman primates and humans, describe why calorie restriction may not be as effective in humans as in other species.

Using examples from both nonhuman primates and humans, describe why calorie restriction may not be as effective in humans as in other species.

A regular program of physical activity decreases resting heart rate and blood pressure and increases red blood cell number. Why?

Discuss the relationship between rate of aging and reserve capacity. Explain how regular physical activity may increase reserve capacity.

Discuss how the transition from an agrarian society to an industrial society resulted in declining birth rates. Include in your answer how concepts from population biology help to explain declining birth rates.

How might the addition of great-grandparents to the family generational structure alter a person's identity within the family?

Based on current information on what our society may look like in the future, do you wish to have a significantly longer life span? Why or why not?