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Articles on Nervous system

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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.
Here’s what’s happening in your body if you’re feeling faint. William Moss/Shutterstock.com

Why do people faint?

Most of the time, different parts of your nervous system work in balance. But sometimes things can get out of whack – and that’s when you might end up experiencing what medics call syncope.
Enzymes, the catalysts of biology, can engulf and break down hundreds of nerve agent molecules per second. Image: Pymol. PDB 4E3T rcsb.org

Enzymes versus nerve agents: Designing antidotes for chemical weapons

Scientists invented chemical weapons; some are now working to destroy them. New biomolecular design techniques let researchers design proteins that can destroy nerve agents in bodies.

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