Aria Bendix is the breaking health reporter for NBC News Digital.
A sudden restriction of blood flow to the brain. That's how scientists have traditionally explained why people faint. But several mysteries remain: What causes someone's blood flow to spontaneously change? And what parts of the brain play a key role? New research in mice, published this week in the journal Nature, offers a closer understanding of the underlying mechanisms behind fainting.
” Next, the researchers tested whether stimulating these specific neurons in mice could induce fainting. 'We have this little fiber which we put into their brains, and we can shine just a little tiny bit of blue light to activate these neurons,' said Jonathan Lovelace, a staff research associate in Augustine's lab and co-author of the study.
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