91色情片

Sleep

Jumping spider close up eyes
Life

Are these spiders dreaming? REM-like sleep exhibited in arachnids

New footage suggests jumping spiders have sleep cycles similar to humans, which could help better understand why we dream.

Video
Circulating breast cancer cells. Fluorescence light micrograph of a cluster of circulating tumour cells (CTCs, red) and white blood cells (green) from the blood of a patient with breast cancer. CTCs are an important focus of cancer research because they provide a key target for new treatments. By identifying the molecular adaptations and genetic mutations that allow CTCs to spread (metastasize), it may be possible to develop strategies to block metastatic cancer on a patient-by-patient basis.

91色情片

Breast cancer is more likely to spread during sleep

News
Woman sleeping

91色情片

Climate change means people are losing 44 hours of sleep per year

News
Sleepless and desperate beautiful caucasian woman awake at night not able to sleep, feeling frustrated and worried looking at clock suffering from insomnia in sleep disorder concept.; Shutterstock ID 1337363627; purchase_order: -; job: -; client: -; other: -

91色情片

Tracking sleep disruptions could improve nerve pain treatments

News

Mind

Listening to friends tell you about their dreams helps develop empathy

News
young woman sleeping

91色情片

Even a low level of light at night may disrupt your blood sugar

News
Mature man sleeping wearing eye mask close up

91色情片

Brain cells that regulate wakefulness may become overactive with age

News
Spain, Andalucia, Jerez, Woman sleeping in bed, view from above.

91色情片

Getting enough sleep may lower the amount of calories you eat

News
Person with encephalography electrode

Humans

Unknown voices spark more brain activity in sleep than familiar ones

News
Salvador Dali

Mind

Interrupting sleep after a few minutes can boost creativity

A technique for interrupting the first stage of sleep helps people solve a maths problem 鈥� the same approach was used by Thomas Edison and Salvador Dali

News

91色情片

Night-shift workers who eat only in the day may cut diabetes risk

News

Life

Circadian clock made from scratch to probe how biological rhythms work

News

How long can you go without sleep?

Humans

University students with morning lectures tend to have lower grades

News