Evidence in the vietnam veterans' study appears to support the idea that men who have higher levels of testosterone tend to be more aggressive and, as a consequence, have more problems. this pattern tends to vary, however, by

The pattern tends to vary, however, by: social class

People in lower class are more prone to this agressive behavior compared to the people in higher class.
study suggests this different of the pattern is created because the people in lower social class have to face a constant challenge to sustain their live.

The president of the united states does not have the authority to “limit” the power of the judicial branch. however, the president can influence the political direction of decisions made by justices on the supreme court through the nomination process when a position becomes available.i would say the best answer is that he can at least interpret the laws