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flight delay and cancel llation stacking up meaning the domino affect is under way. ashley is live in new york, the country's biggiest air traffic hub. it's kind of a mess out there. >> reporter: it is. the severe weather and staffing shortages are contributing to scenes like this at airports across the nation. more than 28,000 flight s were delayed wednesday and 2,000 were cancelled. some travelers have been stuck at the airport for days. >> i am so mad but i'm trying not to explode. >> they just told us it was delayed and they delayed it and they delayed it. at 4:00 a.m., they said...

Centuri sensation in both of his feet. signs of aging? >> that's a good point. it's very common. it impacts about 30 million americans nation wide. if you stop breathing in your sleep for ten seconds or more, that's considered to be sleep apnea. it can be diagnosed with a sleep study test. as you age, aging itself impacts the brain's ability to send signals to your airway to breathe. what happens in the middle of the night, your airway shuts down. you stop breathing. what can that lead to the next morning? fatigue and ultimately can lead to high blood pressure. it can cause heart disease. incr...