Use "regain strength" in a sentence

1. He said we needed the rest to regain strength pulled from us by the storm

2. The only thing they can do now is wait and regain strength

3. bed early at night; sleeping over the weekend to regain strength as

4. Lying on the bed and closing her eyes brought visions of her former patient and remembrances of his handsome body glistening with sweat as he struggled to regain strength