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Electronic nose can smell spoiled food before you can
2+ mon, 3+ week ago (799+ words) Most people trust their own nose to judge whether food has gone off. The human nose works fairly well, yet it misses plenty. According to the Centers for Disease Control and Prevention (CDC), about 48 million Americans suffer a foodborne illness each…...
When this brain switch goes quiet, thoughts become noisier
3+ mon, 3+ week ago (825+ words) The usual assumption about a struggling brain is that something has gone quiet – a circuit turned down, a signal lost. When mental flexibility breaks down, the picture that comes to mind is underactivity. A new study offers a stranger answer....