Imagine nodding off on your way to the shops, nights plagued by violent dreams, and falling asleep every time you laughed. For the López family of narcolepsy and cataplexy sufferers, this is a way of life. But could their plight be the key to a cure?Imagine nodding off on your way to the shops, nights plagued by violent dreams, and falling asleep every time you laughed. For the López family of narcolepsy and cataplexy sufferers, this is a way of life. But could their plight be the key to a cure?