Yawning brooches, some are tired, some are bored, some are nervous.
When wearing these brooches, the fabric you attach it to will be visible through the brooch's mouth. Stick your finger in it to make it look like it's sticking out its tongue.
The sizes vary, they range from 4 to 5 cm tall.
Yawning is often viewed as a sign of tiredness, sleepiness or boredom, but it can also be a sign of stress or nervousness.
By yawning, you increase the amount of oxygen to the brain and it is sometimes suggested that yawning can increase your alertness.
Musicians might yawn before performing, or athletes often yawn before intense exertions.
A psychology professor once proposed yawning may be a means to keep the brain cool. Our brains happen to perform better within a narrow temperature range, so that theory makes sense.
Another hypothesis suggests yawns are caused by the same neurotransmitters that affect emotions, mood, and even appetite.
Yawning is pretty fascinating. Yaaaaaawn.