Cialis (tadalafil) facts. Cialis is the trade name for a drug called Tadalafil. Cialis is one of a class of drugs known as PDE-5 (Phosphodiesterase type 5) inhibitors. Cialis and the other PDE-5 inhibitors can help men with erectile dysfunction (male impotence) by enhancing the erectile response when a man is sexually stimulated. Aside from Cialis, the other drugs in this class are Viagra (Sildenafil) and Levitra (Vardenafil).
Epilepsy: A condition that occurs due to some permanent damage to the brain that then irritates the area making a person suffer from epileptic seizures. This irritation causes the brain to send out abnormal signals which can be, in some cases excessive yawning. Again a rare cause for excessive yawning. If you suffer from the problem, it is best you get a complete analysis. According to a study, yawning may be associated with a number of brain related ailments and may be seen in patients with this existing condition and may occur after a seizure [4].
Yawning commonly occurs either before or after sleep, which is why it is usually considered a sign of being tired. Yawning also occurs frequently in people who are doing boring or tedious things. There is also a social aspect to yawning. Yawning appears to be contagious among humans and other animals, and the contagiousness of a yawn is well documented but hardly understood.