A recent study has found a link between people who have terrible sense of smell with being psychopathic, the AFP reports. Both phenomena had been independently linked to the same region of the brain, so researchers took that one step further and tried to find a link between the two.
The Australian scientists decided to give smell tests to 79 diagnosed non-criminal psychopaths. The results were surprising. The people who scored highest in terms of psychopathic traits had the hardest time telling the difference between different scents. Check the source for more