Your brain essentially washes itself as you sleep through something called the lymphatic system. If we don't circulate this waste out of our necks, it can build up, which is bad news for our brains.

She said: "I'm also a big believer in doing a brain dump earlier in the evening – jotting down any racing thoughts well before bedtime so they don’t pop up just as you’re trying to relax." ...

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As a result of its problems, the country is also experiencing a significant brain drain, as its best and brightest seek to leave its shores for better opportunities. Scientist Jamil Rima was ...