Yes a 38 yr old can have adult ADD. I am 42 yr old female with ADD and suffered until 2000 when Every antidepressant in the world did not help.
My can not concentrate on only one thing at a time. An example When I clean my house I will go from room to room and do a few things in each. With meds I can do one thing at a time. I am no longer depressed and shy and lonely. He can go to a family Dr
PS Get him on a good multiple vitamin with antioxidants and B Compex and Fish oil.
What are the signs you think he is?