Due to this high prevalence, vertebral artery hypoplasia (VAH) has not yet been considered an independent risk factor for ischemic stroke [1,2].
How to use your own headphones on Americanâs new 777-300ER. Passengers traveling in First and Business Class on Americanâs new 777-300ER are provided with Bose QuietComfort 15 Acoustic Noise Canceling headphones to use during the flight.
Ear problems are the most common medical complaint of airplane travelers, and while they are usually simple, minor annoyances, they may result in temporary pain and hearing loss. Make air travel comfortable by learning how to equalize the pressure in the ears instead of suffering from an uncomfortable feeling of fullness or pressure.