Why do my ears feel incredibly hot and bright red when I lie down to go to sleep?

Why do my ears feel incredibly hot and bright red when I lie down to go to sleep?

1. Introduction Ears feeling intensely hot and appearing bright red when lying down is primarily caused by sudden vasodilation of the superficial auricular blood vessels in response to postural fluid shifts and thermal regulation. When you transition to a horizontal position, gravity no longer draws blood downward, allowing an increased volume of warm arterial blood … Read more