Let us take a moment to honor the unsung villains of the human body — the sinuses, four hollow spaces in the skull, designed ...

It could be caused by sinus trouble, said doctors at Baylor College of Medicine. “Our sinuses are air-filled spaces in our skull located behind our cheeks, forehead, eyes and the bridge of our nose,” ...

During this time, their bone-enclosed sinuses reduced and they developed sinuses and air sacs outside of their skulls. This would have alleviated increases in pressure during deeper dives ...