Al-Kaŝkarī (Arabic: الكسكري; fl. 930 CE) was a hospital physician from Baghdad.
In diagnosing mental disorder, Al-Kaskari used criteria such the temperament of the patient as indicators to ascertain the nature of the mental disorder: sluggishness and forgetfulness point to a cold temperament, which requires a different treatment from a warm one, which is revealed through insomnia.
Further reading 
- Pormann, Peter E (2003). "Theory and Practice in the Early Hospitals in Baghdad — Al-Kaškarī On Rabies and Melancholy". Zeitschrift für Geschichte der Arabisch-Islamischen Wissenschaften 15: 197–248.