They have a calming effect, I take them at night.
He didn't move and this seemed to have a calming effect on the crowd.
His voice, as he spoke to her, had a calming effect.
Being left alone for a while might have a calming effect.
Give her something to eat, that always has a calming effect.
The calming effect, he explained, will be on the people who put up the money.
It was amazing how quickly he felt the calming effect.
For example, they seem to have a calming effect on children.
In fact, her presence seemed to have a calming effect on him.
It is said that the leaves have a calming effect.