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How infants sweat
Not just on their scalps
Matthew Alice: As the mother of young children, I’ve always wondered, why do small children and infants sweat only on their scalps? — Sherry Valencia, San Diego
Um, didja peek into the Dr. Dentons and check out the rest of the kid? The Little Valencias are loaded with sweat glands all over, and by age one, they’re fully functional. Head sweat shows up a lot because a baby’s hair is usually sparse and gets sopping wet, while clothing, diapers, crib sheets, or other fabrics absorb some perspiration from the rest of a sweating tad. All babies are born with a lifetime supply (two to five million) of eccrine sweat glands, the kind that help with body-temperature control. They’re most abundant on the palms and soles, then the head, then the body, and least abundant on arms and legs. Since babies have as many as NBA stars, a baby has about eight to ten times more of them per square inch than an adult. For the first six to nine months, though, not all of a baby’s are mature enough to work well. Anyway, the sweating Valencias are definitely losing water and body heat all over, even though a good percentage of it is squeezing through the scalp.
Here's something you might be interested in.
How infants sweat
Not just on their scalps
How infants sweat
Not just on their scalps
Matthew Alice: As the mother of young children, I’ve always wondered, why do small children and infants sweat only on their scalps? — Sherry Valencia, San Diego
Um, didja peek into the Dr. Dentons and check out the rest of the kid? The Little Valencias are loaded with sweat glands all over, and by age one, they’re fully functional. Head sweat shows up a lot because a baby’s hair is usually sparse and gets sopping wet, while clothing, diapers, crib sheets, or other fabrics absorb some perspiration from the rest of a sweating tad. All babies are born with a lifetime supply (two to five million) of eccrine sweat glands, the kind that help with body-temperature control. They’re most abundant on the palms and soles, then the head, then the body, and least abundant on arms and legs. Since babies have as many as NBA stars, a baby has about eight to ten times more of them per square inch than an adult. For the first six to nine months, though, not all of a baby’s are mature enough to work well. Anyway, the sweating Valencias are definitely losing water and body heat all over, even though a good percentage of it is squeezing through the scalp.
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