To me, fearless is not the absence of fear. It's not being completely unafraid. To me, fearless is having fears. Fearless is having doubts. Lots of them. To me, fearless is living in spite of those things that scare you to death.
了解我们的身体如何感知疼痛可以为数百万人带来更好的治疗和生活质量的提升。