A specialized system sends pulses of pressure through the fluids in our brain.

Her study found the glymphatic clearance was mediated by a hormone called norepinephrine and happened almost exclusively during the NREM sleep phase. But it only worked when sleep was natural. Anesthesia and sleeping pills shut this process down nearly completely.

  • otp
    2·
    9 hours ago

    Aside from possibly becoming a dependency, I’d imagine it doesn’t interfere with sleep quality. It’s what builds up in your body to make you sleepy/fall asleep.

    Too much might keep you groggy in the morning though.