Duérmete ya

Duerme. Duérmete ya, hijo mío. This little saying gives the lyrical basis for the Spanish translation of Sleepyhead, except stripped down to just “Duérmete ya”, an imperative translating as “Sleep now”, there is also a sense of urgency. This is appropriate, as a campaign to improve sleep would probably achieve greater benefit for public health than any other single intervention. The work of epidemiologist Francesco Cappuccio and colleagues over the last ten years and more has clearly established that sleep deprivation (where there is routinely less than 6 hours a night) significantly increases the risk of obesity (by 57%), hypertension

Deep sleep, brain magnets and memory

Deep non-REM sleep appears to affect how well we commit a new task to memory Sleep specialists like to divide sleep into one of two states: rapid eye movement sleep (REM) and non-rapid eye movement sleep (non-REM). Since the discovery of REM and its tight link to dreaming in 1953, there has been a lot of research focused on this paradoxical wake-like state. But as we experience much more non-REM than REM during the night, non-REM or deep sleep might be the more important of the two states. It’s likely there are many functions of non-REM. It could simply be

Five nights in Stanford

I’ve just returned from a mind-blowing trip to Stanford University, five days of back-to-back interviews with some of the most important figures in sleep research. It’ll all be in the book. This was made possible by a generous grant from The Society of Authors. I got to meet William Dement, a legend in the field of sleep medicine and the reason why Stanford has such a high concentration of great doctors and researchers interested in sleep. I spent several delightful hours in the company of Christian Guilleminault, less well known than Dement but, in my view, an equal partner in