Jun 25, 2024 · Everything you need to know about 12-year-olds, from physical and cognitive milestones to emotional and social development.

Jun 30, 2025 · From puberty to peer pressure and everything in-between. Learn what to expect from a 12-year-old son, and how you can support his mental & physical growth.

May 29, 2025 · Is your 12-year-old due for a checkup? Learn what to expect, questions to ask, and key milestones in this AAP pediatric visit guide.

By 12 years, it's common for many kids to: In girls, puberty usually starts when they're between 8 and 13 with breast development and the appearance of pubic hair.

Apr 27, 2018 · See common physical, social and cognitive developmental milestones for 11- and 12-year-olds, and how you can help your preteen as they grow.

Adolescence is defined as the ages 12-18 years. During this year of rapid brain development and emerging self-identity, your 12-year-old can be particularly vulnerable, especially to peer pressure.

5 days ago · A 12-year-old was stabbed in the chest in Brooklyn earlier today, according to the NYPD.

Sep 2, 2025 · Age 12 is a turning point in your child’s development—emotionally, physically, and intellectually. Learn how to support your pre-teen through this powerful phase with practical tips and …

5 days ago · A 12-year-old boy was clinging to life following a vicious stabbing inside a Brooklyn park Thursday, cops said.

These developmental milestones for 12-14 year olds show what’s normal and what's too much.