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Medicine

Neuroprotective Hypothermia Protocols After Cardiac Arrest

Quick fact

Mild cooling to about 33°C can drop the brain’s metabolic rate by roughly 6–10% per degree Celsius, which is why even a few degrees makes a difference in protecting brain cells.

Why this is interesting

You’ve probably heard of ice baths for athletes, but did you know that cooling the body can also save a brain after a heart stops? Why would doctors deliberately lower a patient's temperature in the hours after resuscitation?