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- Subject
- Health & Nutritionphysical-education › health-nutrition
- Published
- 14 Jan 2025
- Last updated
- 28 May 2026
Explanation
Fatigue experienced during exercise is mainly due to the build-up of lactic acid in the muscles, which affects muscle performance and causes discomfort. While pH changes, carbon dioxide, and hormones play roles in the body's response to exercise, lactic acid is the primary factor linked to fatigue.
More Health & Nutrition MCQs
Practice related questions from the same subject.
- 1.What is the estimated total number of heartbeats in a human heart's lifetime?
- 2.Minerals are classified into two categories: Macro minerals and ____________ minerals. What is the correct term for the second category?
- 3.What is another term commonly used to refer to amino acids?
- 4.What is the approximate percentage of water present in the body of an average adult human?
- 5.What is the typical breathing rate for a human being?
- 6.What does a Body Mass Index (BMI) value of 25 indicate?
- 7.Which illness is caused by a lack of Vitamin C in the diet?
- 8.How many essential amino acids are required in the human diet?
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