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).
This section shows a full list of all the diseases and conditions listed as a possible cause of Excessive yawning in our database from various sources. 1  Aortic dissection. 2  Excessive daytime sleepiness. 3  Heart attack.  Sleep apnea.
You have yawned. Many animals, including humans, yawn. They do it involuntarily. The signal that initiates a yawn comes from a particular brain region, the PVN (for paraventricular nucleus) of the hypothalamus.It stimulates other brain cells in both the brain stem and the hippocampus to produce the muscle contractions we call a yawn.hen you yawn it goes to 25. The reason people yawn is to force lymph through the nodes in the neck, at the same time you stretch your arms to force lymph through the axial nodes. Some animals also stretch their back legs for the lower nodes.