2. Medical Alert Technology in the 1970s

Dr. Andrew Dibner, a psychologist, focused on issues of older individuals, especially those who live alone. He worried that they had no means of calling for help in case of a medical emergency or fall. He and his wife developed the Lifeline Systems, wearable pendants or bracelets with transmitters. An individual can push a button on the wearable device to alert a central monitoring system via a console linked to their home telephone and a speakerphone. This connected them with an operator, who could summon an ambulance, relative, or neighbor to assist them. Companies use similar technology today.

wearable alert button AndreyPopov / Getty Images

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