3 doctors weighed in:
Why can suddenly lifting a heavy weight cause a headache?
3 doctors weighed in

Dr. Bryan Levey
Pediatrics
2 doctors agree
In brief: It's called Valsalva
You're probably holding your breath while lifting the weight.
This causes your blood pressure to go dramatically up while your cardiac output decreases, and this is probably causing your headache. Every weight lifter knows to exhale while lifting, precisely to avoid problems like this. You can pass out or worse by doing this, so always remember to exhale when you lift something heavy.

In brief: It's called Valsalva
You're probably holding your breath while lifting the weight.
This causes your blood pressure to go dramatically up while your cardiac output decreases, and this is probably causing your headache. Every weight lifter knows to exhale while lifting, precisely to avoid problems like this. You can pass out or worse by doing this, so always remember to exhale when you lift something heavy.
Dr. Bryan Levey
Dr. Bryan Levey
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