I work a 4 ten hour schedule which often leaves me tired (not
exhausted)at the end of a workday.  I have tried a.m. workouts but
have difficulty waking up.

Is there any clinical studies that may shed light on this issue. 
Also, is  there any data that would indicate that strenuous exercise
immediatley following sleep has adverse reactions in middle aged men
with moderarate high BP   Tahk You