Which effect does +Gz have on the body?

The correct interpretation of the effect of +Gz on the body is centered around the perception of weight. When experiencing +Gz, which is a force that pulls the body downward in a vertical direction, individuals feel a significant increase in weight. This phenomenon occurs because the body is subjected to forces greater than normal gravitational pull, which makes it feel as though you are heavier than usual.

As the +Gz forces increase, blood is pushed away from the brain towards the lower parts of the body, which can lead to various physiological effects including a potential decrease in blood flow to the head and brain. While this can indeed cause dizziness, blurred vision, and confusion, the most direct and immediate sensation is the increased perception of weight when subjected to these forces.

Thus, understanding that +Gz primarily enhances the feeling of weight is crucial for comprehending how pilots and those in aviation environments can manage the physical challenges presented by high G-forces. This understanding helps in preparing for and effectively responding to the symptoms associated with high +Gz conditions.