3 doctors weighed in:

Why do I keep hearing white noise in my head every night?

3 doctors weighed in
Dr. Cindy Juster
Pediatrics
2 doctors agree

In brief: Normal blood flow.

You're probably hearing the blood flowing through blood vessels in the ear area.
When you have your ear on a pillow or mattress, you're blocking out environmental noises, so the normal noises of circulation become audible.

In brief: Normal blood flow.

You're probably hearing the blood flowing through blood vessels in the ear area.
When you have your ear on a pillow or mattress, you're blocking out environmental noises, so the normal noises of circulation become audible.
Dr. Cindy Juster
Dr. Cindy Juster
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