Articles on Nervous system

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An initial challenge can help your body and mind be more resilient in the face of hard exercise. Taiyou Nomachi/DigitalVision via Getty Images

A cold shock to ease the burn − how brief stress can help your brain reframe a tough workout

Your brain and body constantly recalibrate what ‘hard’ feels like. The effect of overcoming one small challenge can ripple forward, making the next challenge feel more doable and even rewarding.
Your brain produces around a pint of cerebrospinal fluid each day. Archibald Church, Diseases of the nervous system (1908)/Internet Archive via Flickr

Fluid keeps your brain from crushing itself and shields your spine from shock – a neurologist explains what happens when it stops working

Cerebrospinal fluid can sometimes leak or collect in the brain without an identifiable cause, leading to symptoms that can be difficult to diagnose.
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Christmas drinks anyone? Why alcohol before bedtime leaves you awake at 3am, desperate for sleep

Here’s what’s going on in your body when you drink alcohol just before bedtime. And if you want to drink at the Christmas party, we have some tips on how to protect your sleep.
A new brain-imaging study finds that participants who had even mild COVID-19 showed an average reduction in whole brain sizes. Kirstypargeter/iStock via Getty Images Plus

Even mild cases of COVID‑19 can leave a mark on the brain, such as reductions in gray matter – a neuroscientist explains emerging research

New research offers insights into the brain after COVID-19 that may have implications for our understanding of long COVID-19 and how the disease affects our senses of taste and smell.
The new findings, although preliminary, are raising concerns about the potential long-term effects of COVID-19. Yuichiro Chino via Getty Images

Preliminary research finds that even mild cases of COVID‑19 leave a mark on the brain – but it’s not yet clear how long it lasts

Reduced brain volume in people who have experienced COVID-19 resembles brain changes typically seen in older adults. The implications of these findings are not yet clear.
People suffering from long-term effects of COVID-19 face uncertainty about the nature of their symptoms and how long they might last. Halfpoint Images/Moment via Getty Images

Deciphering the symptoms of long COVID‑19 is slow and painstaking – for both sufferers and their physicians

Researchers are piecing together clues to better understand the puzzling array of symptoms in those who never seem to fully recover from COVID-19.

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