Amphetamines are known for giving the people who take them a surge of energy. So what does this mean that two of history's most feared groups, the Nazis and ISIS, have taken them?
Watch more: Who Are The Suicidal Shock Troops Of ISIS?
As it turns out, amphetamines gave these killers the energy to thrive with very little sleep and continue carrying out their military missions. Watch the full video to learn more about this little-known bit of history that still continues in the present.
Video via TestTube News