Britney Spears has admitted to taking Adderall as a teenager in an effort to feel "less depressed" amid the crippling pressures of fame. Writing in her new memoir, The Woman in Me, the 41 year old opened up about some of her most raw and vulnerable experiences, which reportedly included having an abortion at 19, after her boyfriend at the time, Justin Timberlake, didn’t feel ready for parenthood.The two singers dated when they were just teenagers after meeting at The Mickey Mouse Club when they were only 12.