If you lived on a moon of Jupiter, how would the variable gravity affect you?

One of Jupiter’s moons, ice covered Europa, might actually harbor primitive life. Even if there is no life there, there’s water, so building a colony there might be feasible. Europa is slightly smaller than Earth’s moon. If Europa were isolated from Jupiter, you would weigh 13.4% as much on its surface as you weigh here on Earth. But its orbit is close that the gas giant, Jupiter. Within our solar system, Jupiter is second only to the Sun in mass. If Jupiter had a surface to stand on, there you would weigh 2.53 times as much as you do on Earth. In fact, Jupiter’s massive tidal pull on Europa is why there appears to be liquid water under its frozen surface. The forces of nearby Jupiter’s gravity as Europa spins generate enough internal heat to keep much of its water liquid.

So clearly, those gravitational forces would affect a person standing on the moon’s surface. It you stood directly opposite the planet, Jupiter’s gravity would be added to Europa’s, making you heavier than the 13.4% Europa’s own gravitational pull would exert on you. Move to the side closest to the planet, and Jupiter’s gravity would be pulling you up and away from Europa, making you lighter than you were when located opposite the planet. In addition, the tidal pulls of Io and Ganymede, also relatively large moons, would constantly vary as this graphic illustrates. What do you think such a variance of gravitational pulls would do to humans accustomed to the relatively constant gravity of Earth?