1. A state of mental confusion or lack of mental clarity characterized by difficulty concentrating, forgetfulness, and slow thinking
After working long hours, I experienced brain fog and couldn't focus on the task.
Depois de trabalhar muitas horas, experimentei neblina mental e não conseguia me concentrar na tarefa.
2. A temporary cognitive impairment that can result from stress, lack of sleep, poor nutrition, or medical conditions
The patient complained of brain fog as a side effect of the medication.
O paciente reclamou de neblina mental como efeito colateral do medicamento.