A new study published in the journal Pediatrics has shown that boys and girls process caffeine differently after puberty.
The researchers found that males had a greater response to caffeine than females, wherein they experience greater heart rate and blood pressure changes.
“We didn’t go into this research with a hypothesis about sex differences,” said lead researcher Jennifer Temple, “but that’s what kept coming up in our research.”
Temple and her team first noticed a trend a few years ago while analyzing kids’ diets.
They were surprised by the amount of coffee, soda, and energy drinks the children in her studies were consuming.
Sensitive to the effects
For this research, about 95 children and teens consumed the equivalent amount of three different drinks: orange juice, lemon-lime flavored soda, and lemonade with a placebo added or caffeine.
Temple discovered that for young children, ages 8 to 9, there is no gender difference in reaction to caffeine.
Boys between ages 15 to 17, on the other hand, reacted more immediately to caffeine than girls did.