Compared to adults, children's whole-body sweat losses are:

• A. Less than in adults
• B. Exceed adults
• C. About the same
• D. Children do not sweat

Answer: (A)

When the body needs to cool itself during exercise, sweating is the main way heat is lost. The total amount of sweat you lose depends on how fast you sweat and how long you’re exercising. In children, the sweating response isn’t as fully developed as in adults. Sweat glands do produce sweat, but the rate of production is lower and sweating tends to start later during heat exposure. Because of that, the overall whole-body sweat loss is typically smaller in children than in adults under the same exercise and environmental conditions. It’s not that children don’t sweat or that they sweat more; they simply have a lower sweat output overall.