That's because twins often share vital organs, like a heart or brain.

这是因为双胞胎通常共享重要的器官，比如心脏或大脑。

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Other epigenetic processes appear to occur randomly, while others are normal, such as those that guide embryonic cells as they become heart, brain, or liver cells, for example.

其他的表观遗传过程似乎是随机发生的，而其他过程则是正常的，比如那些引导胚胎细胞成为心脏、大脑或肝细胞的过程。

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Strokes and heart attacks occur when blockages in the arteries supplying the brain or heart muscles cut off the supply of blood to tissues.

当供应大脑或心脏肌肉的动脉阻塞，进而切断组织血液供应时，就会出现中风和心脏病发作的情况。

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Clots can block the flow of blood to the heart or brain and cause a heart attack or stroke.

VOA: special.2009.10.20

The connection, the link, the bridge between our mind and our body; between our emotions and our thoughts; between the brain and the heart.

联系，关联，心灵与身体的桥梁;,情绪和思想的桥梁;,脑和心的桥梁。

哈佛公开课 - 幸福课课程节选

But instead of those signals going to your heart they go into the brain.

但这些电信号针对的不是心脏而是大脑

耶鲁公开课 - 生物医学工程探索课程节选

Broken pieces of the brain, heart or liver could be replaced--repairing damage done by accidents or illness.

FORBES: Magazine Article

In humans they sit on nerve cells throughout the body--in the brain, heart and stomach and on skeletal muscle.

FORBES: Magazine Article

Anesthesiologists paralyze patients undergoing sensitive surgeries on the spine, brain or heart by bathing cellular receptors with strong muscle relaxants.

FORBES: Magazine Article