For people with autism, aggressive outbursts may be the only external signs of stress that’s been building up inside — seemingly unpredictable moments that can startle even their trusted caretakers. But there are more subtle signs of distress that wearables can detect and communicate in advance, a Northeastern University research team has , offering caregivers a precious minute of advance awareness to prepare for and possibly mitigate the issue.

The fundamental challenge is in helping people with autism to communicate their distress to caregivers before it reaches the boiling point of an outburst, an issue due to the high resting levels of stress and verbal communication challenges some people face. To an outside observer, the outburst might appear to come from nowhere, even though an unspoken stressor

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