My body maintains ideal weight and good health.

*Maintains* is a verb, and an unglamorous one.

Houses stay standing because somebody clears the gutters in October. Nobody notices the gutters. They notice the ceiling stain fourteen months later, in the room belonging to the house where nobody cleared them.

Maintenance is a run of small unremarkable acts performed on something that appears perfectly fine at the time. That is exactly what makes it easy to skip and exactly what makes it work. Whatever you did today that produced no visible result is probably the part that is holding.