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0:58
Why it鈥檚 hard to breathe at night馃 That frustrating feeling of waking up with a stuffy nose for no reason? It might not be allergies鈥攊t could be your own home. 馃挕Here鈥檚 the science: Our constant use of AC, heaters, and fans creates a super dry environment. To combat this, the tiny structures in your nose called turbinates (your built-in air humidifiers) have to work overtime. They swell up to add moisture to the air you breathe. But when they swell too much, they can block your nasal passages,
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