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When action researchers speak of electronic communications , the most important limitations on perception will be generally cultural and emotional rather than physical . Even more alarming , however , is the high percentage of youth in foster care who have diagnosed mental and emotional disorders , as well as learning disabilities . Course content will include units on : fitness , community and environmental health , nutrition , mental and emotional health , human sexuality , personal safety and emergency care , stress management , tobacco , alcohol and other drugs . Children who are bullied experience real suffering that can interfere with their social and emotional development , as well as their school performance . The series took a compassionate approach both to the Vietnamese victims and to the soldiers who belonged to Tiger Force , many of whom suffered mental and emotional breakdowns as a result of their wartime actions .