1 2 Gray Matter Heterotopia patients report severe insomnia (40%). 2  0 Gray Matter Heterotopia patients report moderate insomnia (0%). 3  2 Gray Matter Heterotopia patients report mild insomnia (40%). 4  1 Gray Matter Heterotopia patients report no insomnia (20%).
Economic stability refers to the an absence of excessive fluctuations in the macroeconomy. An economy with fairly constant output growth and low and stable inflation would be considered economically stable. An economy with frequent large recessions, a pronounced business cycle, very high or variable inflation, or frequent financial crises would be considered economically unstable.
An economic collapse is essentially a severe version of an economic depression, where an economy is in complete distress for months, years or possibly even decades. A total economic collapse is characterized by economic depression, civil unrest and highly increased poverty levels.