Wouldn't think so: Your body has fail-safes in its function that prevent such an injury by simple head shaking. I suppose if you spent hours doing it you could eventually cause injury, but it would likely be to muscles rather than brain.
Answered 1/15/2019
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
10 doctors weighed in across 4 answers
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