Best Answer: The correct phrase is a wolf in sheep's clothing. It means someone is pretending to have good intentions about something, but they are really up to ...
Like other brain illnesses, anxiety disorders may be caused by problems in the functioning of brain circuits that regulate fear and other emotions. Studies have shown that severe or long-lasting stress can change the way nerve cells within these circuits transmit information from one region of the brain to another.
1 Generally, those changes affect sex hormones, such as estrogen and testosterone, indicating that the two hormones may contribute to anxiety. 2  Studies on rates appear to confirm this belief. 3  Thyroid Hormone An overactive thyroid can also cause a significant problem with anxiety, and is very likely to cause panic attacks.ithout hormones, your body may not produce the right amount of neurotransmitters, and anxiety may be the result. That said, some examples of hormones that may contribute to anxiety include: 1  Stress Hormones (Cortisol) Cortisol and anxiety have a cyclical relationship.