Gravity's Effects on the Body Explained

This diagram shows the effects of microgravity on the body, although exaggerated. On the left hand side of the diagram is an illustration of an unchanged human body above the label "On ground 1G." Moving to the right, the next diagram shows a human body with more mass in the chest and upper arms, along with the caption "Initial stage in space." The third image shows a body with slightly more mass in the chest and upper arms than the first diagram, but less than the second diagram, over the label "After adjusted to microgravity." The fourth and final image is the original human body diagram over the label "Immediately after return from space."