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.
In men, schizophrenia symptoms typically start in the early to mid-20s. In women, symptoms typically begin in the late 20s. It's uncommon for children to be diagnosed with schizophrenia and rare for those older than 45. Schizophrenia involves a range of problems with thinking (cognitive), behavior or emotions.Signs and symptoms may vary, but they reflect an impaired ability to function.Symptoms may include: 1  Delusions.t's uncommon for children to be diagnosed with schizophrenia and rare for those older than 45. Schizophrenia involves a range of problems with thinking (cognitive), behavior or emotions. Signs and symptoms may vary, but they reflect an impaired ability to function. Symptoms may include: 1  Delusions.