Mental energy can be increased through the stress and conditioning method, through challenging mental study and tasks, deep learning and creative activities.

心理能量可以过压力和调节方法，通过富有挑战性的精神研究和任务，通过深入学习和创作活动来加强。

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So through Yo-Yo Ma's mastery of the cello, Picasso's immersion in art, and Einstein's deep study of physics, they each learned how to learn.

因此，无论马友友（国际顶尖华裔大提琴演奏家，译者注）演奏大提琴的熟练，毕加索对艺术的浸淫，还是爱因斯坦对物理学的深刻研究，他们每个人学到的实际上就是怎样学习的方法。

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Through the deep study of cooperative learning theory and constructive theory, we find that these two theories are complementary to each other.

我们通过对合作学习理论与建构主义理论的深入研究，发现这两种理论是具有互补性的。

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Study participants were also taught to breathe by taking deep breaths through the nose, feeling the air fill their lungs and exhaling fully.

CNN: Mindfulness training busts stress