This is linked to how some drugs interact with chemicals in the brain, making you yawn more than usual. In addition, various diseases can affect the brain and cause excessive yawning. 3 So excessive yawning can signal bad health condition. It absolutely needs your attention though yawning ...
Alert parents often note that their child yawns more than usual. If no obvious cause such as lack of sleep exists, medical evaluation to rule out brain dysfunction, is warranted. An electroencephalogram can diagnose brain dysfunction. Treatment Excessive yawning usually requires no treatment. Children...
1. V-I If you yawn, you open your mouth very wide and breathe in more air than usual, often when you are tired or when you are not interested in something. 打哈欠 例: She yawned, and stretched lazily. 她打了个哈欠,伸了个懒腰。 2. N-COUNT Yawn is also a noun. 哈欠 例...
Excessive yawning is defined as yawning which occurs more than once per minute.9 If you do keep yawning, you might want to consider whether there is something else going on. Some underlying causes of excessive yawning include sleep disorders such as sleep apnea, narcolepsy or side...
A gender difference in yawn duration was also detected; males performed longer yawns than females. The relatively short yawns reported by all groups in the present study may be due to the shorter than usual training and instruction of subjects (cf. Provine, 1986), a modification of procedure ...
A. make more noise than usual B. fly in different directions C. come down from tall trees D. share a piece of bread 3. How can birds sense the coming of a storm? A. By feeling a drop in air temperature. B. By noticing the change of wind directions. ...
I hope my readers will forgive me if this post is somewhat less detailed than the ones I wrote in the past, as up to the very last moment I was not sure I felt up to writing my usual “Best of the Year” piece. However, I have tried my best to comment on the many highlights ...