The effect of khat on pulmonary functions among Jazan University students

الملخص EN

Khat (Catha edulis) is widely consumed among the youth of Jazan region of Saudi Arabia.

The leaves are chewed for their stimulant effect.

Apart from habitual use, it is reported that students use Khat to improve their academic performance and is consumed by laborers to obtain extra vigor and energy, which they need for their work.

The effects of Khat on central nervous system, cardiovasculars system and gastrointestinal tract are well described and reported in the literature.

However, the effects of Khat on pulmonary function is not well documented.

This study was conducted to assess the effects of Khat chewing among college students in Jazan region on pulmonary function tests (PFTs).

Results; there were significant differences in most pulmonary functions (p < 0.05) at four hours after Khat ingestion as compared to the control group.

Khat ingestion improved the lung volume and capacity.

In conclusion; Khat leaves have sympathetic-like effects on lung volume and ventilatory capacity.

However, further researches should be conducted to find out the effect of long-term use of Khat on pulmonary functions.