A warrior lifts a small stone weight beside a deep terraced canyon in morning light.
The stone is heavy but not too heavy. The legs and back work together, with the spine kept straight. Strength of body is built with loads you can control.
Kepler-62 f orbits its star in about 267 days. Its size is measured, but its mass is only known to be below 35 Earth masses.
Practice
Lift a light weight from the floor ten times with a straight back.