Why is Grandpa smiling by his chair?
He has a new daily habit.
It is a four-minute strength workout.
Strength means making his muscles work.
First, he stands up from the chair.
Then he sits down slowly.
Next, he pushes against the wall.
He also steps up carefully.
At first, he feels very slow.
But he keeps doing it each day.
Soon, the chair feels easier.
A recent study found a similar result.
Short daily exercise helped older people move better.
Grandpa does not need a long workout.
Small work can bring strong change.
Today, his chair is his little gym.










