There are over 2,900 species of snakes ranging as far northward as the Arctic Circle in Scandinavia and southward through Australia. Snakes can be found on every continent except Antarctica, in the sea, and as high as 16,000 feet (4,900 m) in the Himalayan Mountains of Asia.
The negative symptoms of schizophrenia are passive in nature. They affect the personâs thinking, emotion and behavior and can be the most devastating of all the symptoms. Three of the most common are flat affect, alogia, and avolition.
Schizoaffective disorder is a serious mental illness that has features of two different conditions -- schizophrenia, and an affective (mood) disorder that may be diagnosed as either major depression or bipolar disorder.ymptoms of schizoaffective disorder may vary greatly from one person to the next and may be mild or severe. Symptoms of schizoaffective disorder may include: Depression. 1  Poor appetite. 2  Weight loss or gain. 3  Changes in sleeping patterns (sleeping very little or a lot). 4  Agitation (excessive restlessness).