When Raquel Hosein was 16 years old, she fell down a flight of stairs and hit her head. The injury led to chronic seizures. Many, if not most, teenagers might find the newfound ailment to be debilitating. But not Hosein.
At 18, she developed a breakthrough technology that could detect seizures before they happen. She constructed a hat lined with electrodes that nestle in an individual’s hair and scalp. The electrodes are part of a mobile EEG system that measures brain activity, which connects to a smartphone app that can message a user when they need to take medication and prepare for a seizure.