"By the time I got readmitted to the school district, I was 14 but looked pretty much as I do now: six feet tall, full beard, lean, hairy."

"But something miraculous was happening; my peers were catching up to me. Other kids in my grade had started shaving, developing muscles, and thinking about sex as obsessively as I had been since age 4. Plus I was going to a public high school in Los Angeles with 3,000 students. Suddenly, I was just another skinny white kid who smoked too much pot. I stopped sticking out. Most important, after more than a decade, puberty was finally done with me. The hormonal roller coaster leveled out. I calmed down. I could see beyond the immediate moment. Indeed, for the first time, I could see my future, and it scared the shit out of me. My past was stained with expulsions and arrests and violations. College seemed out of the question. It was this vision of personal apocalypse that spurred me to action. I pulled away from my friends, many of whom were getting into hard drugs and would soon end up in rehab or prison. I stopped smoking cigarettes and started playing sports. I read. I took honors classes. I had a long-term relationship with a girl who was smart and kind and ambitious. I got into Dartmouth and earned a fellowship to attend graduate school in Ireland. Along the way, I met Meredith, the woman I would marry, who went on to become an obstetrician/gynecologist and then a female-infertility specialist. Proving the gods do have a sense of humor, infertility medicine is a subspecialty of endocrinology — the field that also studies familial male-limited precocious puberty."

From "A 4-Year-Old Trapped in a Teenager’s Body 'I was all of the things people are when they’re 14 or 15' — except a decade younger" (New York Magazine)(about a man with a gene called the luteinizing hormone/choriogonadotropin receptor (LHCGR), which caused him to enter puberty at age 2).