Why do I get a sudden sharp headache when bending over to pick up items?

Why do I get a sudden sharp headache when bending over to pick up items?

1. Introduction A sudden sharp headache when bending over to pick up items is primarily caused by an abrupt, transient spike in intracranial pressure, driven by the reversal of gravitational forces on the venous blood system. Lowering the head below the level of the heart forces blood to pool in the cranial vault, suddenly distending … Read more