The understanding that the body completely renews itself in seven years is a myth
A common belief that the human body replaces all its cells every seven years is debunked by Tartu University professor Pärt Peterson, who states that this cell turnover does not prevent aging.
Adolescents up to 30: it's false that the brain suddenly becomes adult at 25
Recent studies debunk the myth that the brain fully matures at 25, suggesting that full adult development extends into the 30s, contrary to popular social media claims.