Researchers from Turku University in Finland followed 5,302 people born in 1981 looking for the factors linked to suicide. Of the whole sample 27 women and 27 men had made serious suicide attempts by the time they got to 24; of these people 13 men and two women died. 78% of the suicidal men had shown bad behaviour by the time they were eight including: disruptive fits of temper, disobedience, aggression or cruelty towards others, destroying of property, stealing, lying, inattention or hyperactivity. In women mental-health problems only became apparent after puberty.
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