The androids were with Hiro all the time. They personally directed his learning schedule.

They also changed his daily routine. It started slowly. When Hiro would normally rest in contemplation (so the learning locks in); they had him do stretches.

Eventually, they changed the study program completely. Some very unexpected areas of study where introduced. Those changes fit hand-to-glove with a growing exercise program.

This level of physical activity was rare. Especially, for a youngster. Keeping the baseline metabolism low was important to longevity.

Hiro was relieved they changed study program. Introductory topics were quick to absorb (even after a long run).