brain injury ?no2?laughing gas?

India
June 10, 2010 8:36am CST
every 1 says dont cry , which i dont get? but how long is a gds time 4 me to take laughing gas for ? my m8's do it for 30 sec so should i do it for 15 as i have a brain injury? this is for recreational use not by doctor yes ined 2 know how long it should be dione for wit some one with a brain injury ? an if its safe?
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