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Why does high stress easily lead to depression?

 As a common mental illness, depression affects nearly 300 million people worldwide. On average, one in every 20 adults experiences depression. Research has found that frequent and persistent stress is...

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Why does chronic inflammation cause cancer?

Compared with acute inflammation, chronic inflammation often doesn't cause such intense sensations, but it is closely related to cancer, including some of the most common types. For example, lung cancer...

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Do Men's and Women's Brains Really Differ?

  Imagine holding a wrinkled human brain in each hand, dripping with formaldehyde solution. You look at one, then the other. Can you tell which belongs to a woman and...

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