Top 10 unbelievable historical concurrencies. There are more than 1,450 species of bamboo plants. Of these, there are two basic types: those that spread and those that clump. Spreading bamboo, also called running bamboo, will cover any distance up to 100 feet (30.5 m) within a relatively short time period.
yawning (yanâ²ing) yawning An involuntary and often infectious act of slow, deep inspiration accompanied by an almost uncontrollable desire to open the mouth widely.
In short, there is much that we do not understand about yawning. What we do know, however, is that it could be a sign that you are sleepy. Drowsiness can come from many things, some of which include simple problems such as poor sleep hygiene. Other problems can be more serious, such as sleep apnea.