His speech slowed and his ability to concentrate diminished.

During this period, she lost weight, her speech slowed, she was less alert and had difficulty walking.

In no time, her speech slowed, and the timbre of her voice grew pontifical.

However, as the filming progressed, her speech slowed, her pupils dilated and she lost over a stone (6 kg or 14 lb) in weight.

Accordingly, when she broached a subject that was difficult, her speech would slow down markedly and sometimes stop altogether.

His speech slowed, became more discursive.

His speech had slowed so every word sounded crisp and sharp.

The record ends with Goodman "run[ning] out of energy" as his speech slows to a halt.

Her speech slowed, became more precise.

Now Jack's speech slowed and his enunciation improved, as if he were making a point for someone who didn't quite understand English.