How do we disconnect from the environment during sleep and under anesthesia?

A series of new studies finds, among other important discoveries, that noradrenaline, a neurotransmitter secreted in response to stress, lies at the heart of our ability to ”shut off” our sensory responses and sleep soundly.

Replacing time spent sitting with sleep or light activity may improve your mood

New research found that substituting prolonged sedentary time with sleep was associated with lower stress, better mood and lower body mass index (BMI), and substituting light physical activity was associated with improved mood and lower BMI across the next year.

Proper synaptic joint will get you good night’s sleep

A research team has reported in vivo findings that a certain presynaptic cell adhesion molecule named is crucial for the development of synapses in the developing brain.

Sleep difficulties linked to altered brain development in infants who later develop autism

New research finds that sleep problems in a baby’s first 12 months may not only precede an autism diagnosis, but also may be associated with altered growth trajectory in a key part of the brain, the hippocampus.

Genetic variation in a brain-cleansing water channel affects human sleep

The reason why we sleep remains an unresolved question of the 21st century. Research now shows that the depth of non-rapid-eye-movement (nonREM) sleep in humans is associated with different genetic versions of a gene that encodes a water channel involved in fluid flow in…

‘Loss of pleasure’ found in teen sleep study

Sleep patterns around the world have been disrupted as screen time increases and sleep routines change with COVID-19 self-isolation requirements. Negative mood is not unusual in adolescence, but lack of sleep can affect mental health, causing anhedonia (or loss of pleasure), anxiety, anger and…

Ef­fects of rapid-act­ing an­ti­de­press­ants con­sol­id­ated in sleep?

Ketamine alleviates depressive symptoms within hours, with the most significant change typically seen a day after its administration. However, the symptoms often reappear within a week. According to researchers, neural connections strengthened by the quick treatment of depression are consolidated in the brain during…

Link between obesity and sleep loss

Can staying up late make you fat? Researchers found the opposite to be true when they studied sleep in worms: It’s not the sleep loss that leads to obesity, but rather that excess weight can cause poor sleep.

Early bedtime may help children maintain healthy weight

Going to bed early and following a consistent bedtime routine may help reduce children’s risk of becoming overweight or obese, according to a new study published in Acta Paediatrica.

Babies retain even detailed events during a nap

While sleeping the brain goes through previously experienced things, consolidates new memory contents and summarizes similar experiences into more general knowledge. This also applies to babies. However, they can more than just generalize what they have learned. A recent study shows: during sleep a…