chances are he's already been exposed to that kinda stuff and has made his mind up whether he wants to do it or not.
true.
i know the type of temperment described quite well, since i was like that. really irritable, anxious, not-giving-a-f', and lacing my speech with f-bombs regardless of the audience. i, however, was never diagnosed with ADD, because i never got tested.
that was before herbs. i feel a lot different after herbs, but i'd be lying if i said or even thought for a minute that the herb is the reason i was able to overcome difficulties caused by this "attention deficit" bs. truth is, the wisdom and maturity i gained from experiences NOT involving weed is what are actually helping me use my "ADD" to radically better my life.
no drugs exist to help this condition, because it's not really an unfavourable condition. SOCIETY may force us to believe that people "suffer from ADD," but that is simply everyone's perception on the issue. pharmaceutical pills for make-believe problems like this are, imho, one of the biggest challenges facing society.
did you know einstein had ADD? of course, it wasn't recognized as a fucking medical illness back then, and so he wasn't hopped up amphetamines from ze local apothecary. yet he still was one of the greatest, and most productive intellects to have ever lived. imagine if einstein's teacher told him he couldn't colour outside the lines, and told his parents at the PTA meeting that they should be concerned because he's not acting like all the "normal" kids.
maybe then, his parents would have taken little einstein to ze doktor where he would have received barbiturates and amphetamines to quell his rambunciousness and force his mind to conform to what's being taught at school. little einstein would have learned his math and sciences diligently as taught to him, but if he never had the inclination to colour outside of the lines then he would never have given us the theory of relativity or the atom bomb (whether the atom bomb was a stain on humanity or a saviour is still up for debate.)
anyway... did weed help me overcome the detriments of "ADD?" no. but knowing what i know now, i realize that people who are diagnosed as such should be encouraged to think outside the box and pursue existing interests with zeal. if i had allowed my doc to diagnose and "treat" me with all kinds of mind-dulling medication, i would never have developed an interest in engines. cars (and video games, in your example) may seem like pointless, hedonistic pursuits to the average person, but to someone with an overactive mind any serious interest can easily become a passion that gets taken to the next level.
i look at my car-loving peers and for the most part, they are not passionate to the level i am. they will buy the latest power-producing parts and that's where it ends for them. for me, it never ends. my mind is always thinking about the next level and how to bridge the gap between here and there. i've learned a great deal about thermodynamics, fluid dynamics, and metallurgy while striving to always reach that next level, and they are considered far more serious academic pursuits than simply "car tuner."
the best support you could give your brother, imho, is to encourage him to take an even greater interest in his current interests. if he's able to develop a passion out of them, it won't take him long to desire that next level and start digging deeper into more academic veins in search of the juice that will propel his interests to greater things.
