Shed the Pounds and Ace the NASM WLS Exam 2025 – Your Gateway to Weight Loss Expertise!

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What does the First Law of Thermodynamics state?

Energy can be created but not destroyed

Energy cannot be created or destroyed

The First Law of Thermodynamics asserts that energy cannot be created or destroyed; it can only change forms. This principle is fundamental to understanding how energy is conserved in various processes, including those involving metabolic functions in the human body.

In the context of weight loss and exercise, this law implies that the energy we consume through food must be balanced with the energy we expend through physical activity and metabolic processes. As such, if you consume more energy than you use, the excess energy is stored in the body, primarily as fat. Conversely, to lose weight, you need to create a caloric deficit where energy expenditure exceeds energy intake.

This principle helps explain various phenomena observed in weight management and metabolic rate, such as how the body uses energy from food and the importance of both diet and exercise in achieving weight loss goals. Understanding this law is crucial for anyone involved in fitness and nutrition, as it underscores the importance of energy balance in weight management strategies.

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Energy is always increased with exercise

Energy is only lost during physical activity

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