Answer to Question 1
Positive energy balance occurs when energy intake > energy expenditure. Negative energy balance occurs when energy intake < energy expenditure. In most cases, weight change is a good indicator of energy balance: Weight gain indicates positive energy balance, weight loss indicates negative energy balance, and no change indicates energy balance.
Positive energy balance is desirable during periods of growth such as infancy, pregnancy, and intense weight training to increase muscle mass. Negative energy balance is the goal for individuals who want to lose weight.
Answer to Question 2
Acetaldehyde dehydrogenase or ALDH
A Mitochondrion Converts Energy from Fuel Molecules into ATP
Positive and Negative Symptoms of Schizophrenia
Negative feedback control of a regulated variable.
Locations of key energy meridians and acupoints for the back, shoulder, arm, neck, head, and face.
La Niña events store energy
Energy Balance and Imbalances