Michael B. Jordan says one habit helped him play his Oscar-winning roles

Michael B. Jordan says he prepares for his acting roles by doing this one thing,

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• Michael B. Jordan says journaling helps him prepare for his roles.
• He says he writes as his characters to better understand their mindset and emotions.
• He won best actor at the Academy Awards on Sunday for his performance in "Sinners."

Michael B. Jordan, 39, won the Oscar for best actor for his performance in "Sinners." He says one simple habit helped him get into character.