Health & Medicine

Serotonin could make tinnitus worse

The neurotransmitter serotonin influences ringing in the ears. © peterschreiber.media/ iStock Anyone who suffers from tinnitus constantly hears annoying ringing in their...

How the placebo effect relieves pain

In these mouse brains, pain-inhibiting circuits and areas fluoresce green. They are also activated in the placebo effect. © Janie Chang-Weinberg The...

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