sleep

The intensity of brain activity during the day, regardless of how long we’ve been awake, appears to escalate our requirements for sleep, according to a new University College London study in zebrafish. The research found a gene that responds to brain activity in order to coordinate the need for sleep. It helps shed new light… Read more

A mother and daughter who share a rare genetic mutation and who routinely need just six hours of sleep a night have led to researchers taking a further step in untangling the genetic web of sleep[1]. “Before we identified the first short-sleep gene, people really weren’t thinking about sleep duration in genetic terms,” said Ying-Hui… Read more

Taking nonprescribed psychostimulants may slightly improve a person’s short-term focus but impede sleep and mental functions that rely on it — such as working memory. The use of prescription stimulants by those without medically diagnosed conditions marks a growing trend among young adults — particularly college students seeking a brain boost. “Healthy individuals who use… Read more

Overnight amygdala adaptation fails proportionally to the restlessness of REM sleep, new research from the Netherlands Institute for Neuroscience suggests. The finding helps explain why you will be better able to bear tomorrow what you are distressed about today, and why that can go wrong. Something frightening or unpleasant does not go unnoticed. In our… Read more

Deviating from a regular bedtime and wakeup schedule – and getting different amounts of sleep each night – can put a person at higher risk for obesity, high cholesterol, hypertension, high blood sugar and other metabolic disorders, a new study has found. Furthermore, for every hour of variability in time to bed and time asleep… Read more