I am no doctor nor do I try to play one on the internet but I can't help think that playing for a national team in the summer and taking no time off to recuperate from a long NBA season can't be good for the players.
For the USA team we have seen Kobe Bryant and Kevin Love lost for the season the year after their Olympic run. Tyson Chandler lost 15 games to injury. Anthony Davis lost 20 games and Deron Williams hasn't been the same all year due to bad ankles that happened over the summer.
Internationally, Pau Gasol, Anderson Varejao, Leandro Barbosa, Nene, Manu Ginobilli, Tony Parker, Jonas Valanciunas and Andrei Kirilenko have all lost time to injuries.
Out of 41 NBA players that played in the Olympics last summer, 12 have had injuries that effected a very large portion of this year.
Now, before anyone comes out and says that those injuries could have occurred even if they didn't play in the Olympics, but I can't help thinking, this is something more and more NBA teams are going to start exploring the frequency of occurrence on and might start telling their players they don't want them doing that.
And yes, I know the NBA office is the one that wants the players in the Olympics promoting NA basketball world wide, but the NBA office doesn't invest tens of millions on these players contracts. The owners do. Sooner or later someone really important to a championship or the league(LeBron, KD, etc.) is going to get hurt bad the year after the Olympics and then I think the reaction will be worse. I just hope it isn't a Celtic.