That means that an increase of net exports of $100 million leads to an increase in real GDP of $1 billion. Again, this is the multiplier effect at work in the economy. When you think about it, the MPC and the MPS are the key to this formula. When they change, the multiplier effect changes. Since the simple spending multiplier is based on the marginal propensity to consume, any increase in the MPC will increase the value of the multiplier. Likewise, any decrease in the MPS will increase the value of the multiplier.
There are physical causes of shaking, but these tend to be less common. Only a doctor can confirm that you are feeling shaky because of anxiety and not because of some health problem. Also, during periods of stress, the body may deplete important resources, like water or magnesium.
Many believe that a chemical imbalance is the underlying cause of ailments like depression, anxiety, and other mental disorders. A chemical imbalance caused by aging may cause feelings of depression. Antidepressants do not begin to alleviate symptoms immediately. Treating a chemical imbalance often requires a combination of several different approaches. A chemical imbalance may cause hair loss in some individuals. Daily exercise stimulates the pituitary gland to produce endorphins, which are the body's natural painkillers and mood elevators. A chemical imbalance may lead to depression, which can be passed down from parent to child. A chemical imbalance may cause loss of appetite. A chemical imbalance is believed to cause anxiety disorders.