Hand-eye coordination
NASA astronauts use off-the-shelf computer games to improve their hand-eye
coordination.
Quicker reactions
US scientists found that the attention span and information processing time of
“gamers†was better than that of non-computer-playing folk.
Better decision making
Surgeons who play computer games for more than three hours a week make 37 per
cent fewer errors than their nonplaying counterparts.
These facts and a few others about the health benefits of computer games, plus a great many words that tell us almost nothing, can be found in this piece in the Times of London. Geezer has another reason: Winter is coming, and can be played inside, preferably at fireside.
You’re confusing causation and correlation with the doctor reason.