A self-confessed 'mouth breather' has shared her amazing six-week transformation after stopping the breathing technique while she is asleep.
It can of course be very difficult to control what you are doing while you are asleep, so this one woman went to extreme lengths to do so.
Olivia Sweet (@oliviasweettt) took to TikTok to explain her original predicament. Watch it below:
She said that she had watched videos of the negative effects breathing through your mouth can have on your health.
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The TikToker explained how her mouth 'naturally falls open' while she is asleep, and then she explains a few changes that can happen if you do sleep with your mouth open.
She explains that research showed that breathing through your mouth can lead to changes in your jaw and tired eyes.
To change her habits, Olivia decided to tape her lips shut to 'train myself to sleep with my mouth shut'.
Olivia also noted that during the day she would breathe through her nose to help combat her habit.
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In the video, the TikToker provides a side-by-side comparison of before and after.
And in just the six weeks that have passed, there is a notable difference to Olivia's face.
People in the comments tend to agree, with one person stating 'the difference is insane', while another added: "Can’t believe your difference in 6 weeks!"
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And for all mouth breathers out there, you may want to join Olivia in trying to cut it out.
According to Healthline, mouth breathing can cause crooked teeth, facial deformities, or poor growth in children.
And in adults it can cause bad breath and gum disease, while also having the potential of worsening other illnesses.
Professor of Neurobiology at Stanford Medicine and Host of the Huberman Lab Podcast Andrew D. Huberman has also discussed the dangers of mouth breathing.
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Writing on a thread on Twitter, he said: "Mouth breathing during sleep is not just undesirable; it is actually dangerous.
"It's associated with sleep apnea, which puts people at risk for numerous cardiovascular issues, impaired craniofacial development in kids, and aesthetics and tooth and gut health in adults, and more.
"The solution is to become a nasal breather as much of the time as possible and especially during sleep. Some people opt to tape their mouth shut before sleep.
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"Another solution that is additionally beneficial is to restrict yourself to nasal breathing during low to moderate intensity cardiovascular exercise."