Neuroscience

General anesthesia hijacks sleep circuitry to knock you out

The discovery of general anesthesia 170 years ago was a medical miracle, enabling millions of patients to undergo invasive, life-saving surgeries without pain. Yet despite decades of research, scientists still don't understand ...

Neuroscience

How the brain loses and regains consciousness (w/ video)

Since the mid-1800s, doctors have used drugs to induce general anesthesia in patients undergoing surgery. Despite their widespread use, little is known about how these drugs create such a profound loss of consciousness.

Medical research

Exercise in a pill may protect against extreme heat sensitivity

We've all seen the story in the news before. Whether it's the death of a physically fit high school athlete at football training camp in August, or of an elderly woman gardening in the middle of the day in July, heat stroke ...

Medical research

Uncovering the neurobiological basis of general anesthesia

The use of general anesthesia is a routine part of surgical operations at hospitals and medical facilities around the world, but the precise biological mechanisms that underlie anesthetic drugs' effects on the brain and the ...

Neuroscience

Neuroscientists link brain-wave pattern to energy consumption

Different brain states produce different waves of electrical activity, with the alert brain, relaxed brain and sleeping brain producing easily distinguishable electroencephalogram (EEG) patterns. These patterns change even ...

Cardiology

Procedure to open blocked carotid arteries tested

(Medical Xpress)—Doctors at Washington University School of Medicine in St. Louis are investigating a minimally invasive procedure to open blocked carotid arteries in patients whose poor health or advanced age makes the ...

Surgery

Anesthesia, surgery linked to decline in memory and thinking

In adults over 70, exposure to general anesthesia and surgery is associated with a subtle decline in memory and thinking skills, according to new Mayo Clinic research. The study analyzed nearly 2,000 participants in the Mayo ...

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