the.com/teens
a brain under construction running on a body that already finished the blueprints.
means The years of a person's life from thirteen to nineteen, or the people living through them; also numbers in that same range.
from From the suffix '-teen' (Old English '-tēne', a variant of 'tīen', meaning 'ten') that gives us thirteen through nineteen — literally 'three-and-ten,' 'four-and-ten,' and so on. The plural 'teens' for those numbered years is recorded from the 17th century; its use for the people in them, the 'teenager,' is much younger, a 20th-century invention. So the word is, fittingly, built by adding to ten — a count that runs just past the point where childhood ends.
- frontal lobe
- decision-making region not fully wired until mid-twenties
- sleep clock
- biology shifts them later, schools start early anyway
- risk math
- reward circuits mature faster than the brakes
- word origin
- 'teenager' barely existed before the 1940s
- growth spurts
- bones can outpace nerves, causing clumsy phases
generation z — people born 1997-2012, now ages 12-27, represent ~20% of us population
gen alpha — people born 2013-2025, oldest now teenagers, following gen z
millennials as teens — born 1981-1996, were teenagers during 1990s-2010s, shaped by early internet