Do boys really have a testosterone spurt at age four?
MedicalXpress,
The idea that four-year-old boys have a spurt of testosterone is often used to explain challenging behaviour at this age.
The idea that four-year-old boys have a spurt of testosterone is often used to explain challenging behaviour at this age.
The idea that four-year-old boys have a spurt of testosterone is often used to explain challenging behaviour at this age.