And then, in a program they call 12-16-18, around age 12 is when they give the blocking hormones, and then at age 16, with retesting, they re-qualify to receive — now remember, the blocking hormones are reversible, but when you give the hormones of the opposite sex, you now start spouting breasts and facial hair and voice change, depending on what you're using, and those effects are permanent, or require surgery to remove, or electrolysis, and you can never really affect the voice.
Recuerden, las hormonas bloqueadoras son reversibles, pero al darles las del sexo opuesto, empiezan a crecer los senos, la barba, y la voz, según qué se use. Y esos efectos son permanentes, o requieren cirugía para revertirlos, o electrólisis, y la voz nunca se logra cambiar.