Puberty: Your Brain on Hormones

Puberty-related influences on brain development.

Puberty is a time of striking changes in cognition and behavior. To indirectly assess the effects of puberty-related influences on the underlying neuroanatomy of these behavioral changes we will review and synthesize neuroimaging data from typically developing children and adolescents and from those with anomalous hormone or sex chromosome profiles. The trajectories (size by age) of brain morph...

Are You Responsible for Your Hormones?

Seasonal variation in calcitropic hormones and bone accrual in puberty.

The production of 25-hydroxycholecalciferol (25(OH)D) in the liver is dependent on vitamin D obtained from the diet and from exposure to UV light. UV rays stimulate the conversion of provitamin D in the skin to vitamin D, making it available to the liver for hydroxylation to 25(OH)D. The circulating concentrations of 25(OH)D are considered to be reflective of the individual’s total vitamin D ex...

Brain Imaging: Your Brain Scan Doesn't Lie About Your Age

Multi-modal MRI data analysis can be used to predict a child or young adult's age. Most, but not all, individuals' brain-derived age estimate is close to their chronological age.

This is Your Brain on Parasites.