原帖由 viscattery 於 11-4-4 23:11 發表
my speech therapiest said they yawn because they are using their brain. cos the brain use 1/4 of the oxygen we intake... so dun say your kid is lazy .... may be he is just using his brain la.
my speech therapiest said they yawn because they are using their brain. cos the brain use 1/4 of the oxygen we intake... so dun say your kid is lazy .... may be he is just using his brain la.