Definition Yawning involves opening the mouth involuntarily while taking a long, deep breath of air. This is usually done as a result of drowsiness or weariness . Excessive yawning is yawning that happens more often than would be expected, even if drowsiness or weariness is present. Alternative Names Excessive yawning Considerations Yawning is a normal response to fatigue and drowsiness, but excessive yawning can be caused by a vasovagal reaction. This reaction is caused by the action of a nerve, called the vagus nerve, on the blood vessels. It may indicate a heart problem. Normal yawning may happen when someone else yawns. Common Causes Drowsiness or weariness
Disorders associated with excessive daytime sleepiness
Heart attack Aortic dissection
We are born to be anxious. Without it we would have no internal mechanism to monitor and respond to real or perceived threats. In this regard anxiety is both normal and necessary. When people ask about the causes of anxiety however they usually mean the uncomfortable sensations associated with it. Beyond this are the circumstances that evoke high levels of anxiety, but in the face of quite low levels of threat. It is these more extreme levels of anxiety that provoke a wide variety of explanations.
Excessive and ongoing worry may be diagnosed as generalized anxiety disorder (GAD). For the purposes of this Sharepost GAD provides an example of how different theoretical perspectives attempt to explain the symptoms. Essentially, these explanations can be thought of as biological, psychological and social in nature.
There is some evidence that family history can contribute to the risk of developing GAD although the consistency of such research is varied. Areas of brain associa...
One of the common side effects of anxiety is some form of distorted vision. The effects can further fuel anxiety and cause the person to feel worse than they already are. In this Sharepost I'm going to focus on the main causes of visual disturbances before outlining a couple of techniques to help take the edge off the sometimes distressing symptoms.
I've spent quite a lot of time listening to the various symptoms of anxiety; visual disturbance and eyestrain being some of the most common. This is nearly always related to the surge in adrenaline that accompanies anxiety and there's no harm in spending just a few moments describing what's happening.
Primary and secondary forms of anxiety have different effects. Primary anxiety is that part of our fight-or-flight system that energizes us to deal with some threat. Our body floods with adrenaline, sugars, fats and other hormones to allow us to take action.
Secondary anxiety, by contrast, has no particular focus. It mani...
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