The judgment of the district court is affirmed for these reasons:

1. The Administrative Law Judge considered Mr. Viator’s continuing employment as some evidence of his ability to return to his past work, not as present substantial gainful activity of itself to meet the first step in the evaluation process.

2. There is evidence to support the findings. No medical professional has said that Viator is disabled or cannot return to his prior work. His time walking is not critical for that employment, but the doctor’s opinion that he could stand for 30 minutes is not inconsistent with a finding that he could stand for up to six hours in an eight-hour day, allowing for rest between the periods of standing. There is evidence that Viator’s physical and mental problems are adequately controlled by medication.

3. The contention about improper use of the vocational expert is unavailing, because the record supported the findings and the expert only corroborated that.

AFFIRMED.