Science Insight

Does Testosterone Make You Taller?

Testosterone speeds up the teen growth spurt, but through estrogen it also closes the growth plates. Here's why more testosterone never means more height.

Does Height Come From Mom or Dad?

Sons take after mom, daughters take after dad - is that actually how height genetics work? Between sex chromosomes, genomic imprinting, and mid-parental height, the real answer is more interesting than the family myth. Here's what the science actually shows about which parent's genes shape a child's height.

When Do Boys Stop Growing?

Most boys reach their final height between ages 16 and 18, sometimes with small gains into the early twenties. What really decides it isn't age - it's the growth plates, the cartilage bands near the ends of the long bones. Rising testosterone during puberty gradually hardens and fuses them; once fusion is complete, height growth stops.

Average Height for Women in the US

As parents, we are wired to give our child every possible advantage, from the best school to the top-tier enrichment programs to make sure they never miss a practice.  But there’s one critical advantage many of us are accidentally overlooking right at the dinner table everyday.

Average Height of Dutch People (2026 Data & Insights)

If you travel to the Netherlands, I am sure there are two things that will surprise you: everyone rides bicycles, and most people are surprisingly tall. Currently, the Dutch officially are the tallest people on the Earth [1], but interestingly: they weren't always like that.