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My school reports always used to point out that my concentration levels were appalling. I never listened in class because I was always daydreaming about racing. I never thought for a moment about doing anything else. There was no guarantee that I'd make a career in it but I never had any plan B. ↗
They also explained how the sensors can monitor the levels of acetone on people's breath, and this can be used to tell people who suffer from diabetes when their next insulin shot is due. This is a more discreet method than what is currently on the market. ↗