Last update:

Mental disorders have nearly doubled since 1990, now affecting 1.2 billion people worldwide

Nearly 1.2 billion people worldwide are living with a mental disorder, nearly double the number recorded in 1990. According to a new study, this stark rise has placed mental disorders as the leading cause of disability globally, ...

Spinal stimulation data reveal why high-frequency pulses may miss key nerve pathways

Electrical stimulation of the spinal cord, such as following a spinal cord injury, has made great strides in recent years. However, high-frequency stimulation pulses, which are used in many current applications, appear less ...

Medical research news

'Pink noise' can help make anesthesia work better during surgery

In the brain, specific electrical waves are associated with different states of consciousness. For instance, delta waves—also known as slow waves—are especially prevalent during deep sleep, as well as during states of unconsciousness ...

The bigger the reward, the faster we learn, researchers find

Scientists long assumed that learning speed depends primarily on our experience—how many times we try and succeed—not the size of the reward. We become better at poker because we keep playing and winning, regardless of the ...

Decoding inflammatory bowel disease—on a chip

Inflammatory bowel disease (IBD), which comprises the inflammatory conditions Crohn's disease and ulcerative colitis, affects about 1.6 million Americans, many of whom cannot be effectively treated. This is mostly due to ...

Brain's 'tumor hotspots' uncovered in fruit fly study

New research from Peter Mac has uncovered why some parts of the brain may be more vulnerable to tumor growth than others, offering new clues into how brain cancers begin and how they could one day be stopped. Published in ...