by Béatrice St-Cyr-Leroux, University of Montreal Credit: Unsplash/CC0 Public DomainOne in four people suffer from some kind of sleep disorder—insomnia, sleep apnea, narcolepsy, hypersomnia, restless legs syndrome. And for a quarter of them, there is no effective, long-term solution. It is a public health issue. Poor sleepers are an attractive market for private industry, always on...
