| According to the study's author, it's not clear whether cocaine kills brain cells or merely impairs them, or whether the effect is reversible. |
| Driving in an intoxicated state makes a person prone to accidents as alcohol impairs judgement and slows reflexes. |
| The deceiving effect of surgical drapes, as well as various stages of intraoperative brain swelling, impairs the surgeon's orientation. |
| The presence of widespread cutaneous disease impairs the reliability of skin tests. |
| Alcohol impairs the senses, and people do all sorts of foolishness on the road when they drink and drive. |
| Optimally use single-drug therapy because polypharmacy impairs drug effectiveness and side effects accumulate. |
