An expert explains.

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Scientists say it’s not a sign of boredom.

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Proceed with caution.

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Could this be a new way to treat it?

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Keeping weight off can be even harder than losing it.

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"The world must treat it as the urgent climate warning it is."

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Quietly teeming.

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A new layer of understanding.

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"This is a wake-up call, no matter where you are in the world."

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Here's what actually wears you out.

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"The whole point of this kind of approach is that it can move quickly."

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A magnetic relationship.

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To seal spent radioactive fuel underground for 100,000 years.

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As effective as energy drinks and gels – but natural.

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This used to be impossible.

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"A very real problem that needs a solution."

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Longer life expectancy can’t explain it all.

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But the changes could be reversible.

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“We are just scratching the surface of what these neural cultures can achieve.”

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A tempestuous relationship.

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