New muscle relaxants, stop yawning for hours. Yawing allergic reaction of the body is due to fatigue, lack of stimulation, or boredom. Yawning is no longer relaxed induces such person can survive for up to 5 hours of yawn yawn muscle.

, it shows a lack of interest or energy Yawning can be embarrassing during social gatherings or business meetings. This new drug is expected to substantially change the way society views of yawning.