it ll be nice if we get more information about those mechanics: why we get unconscious and why we get tired and how to prevent... do we have to desinfect all items we pick up from the ground....

there is too much we have to worry about to keep our character healthy atm. and those things occur too often in my opinion.

This is a duplicate report and the developers are already aware of this bug/problem.

Please check the feedback tracker to see if an issue exists before creating a new one and instead vote the original one up so the developers can see it's a common problem.

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A list of important bug/issues that the developers are already aware of can also be found on the DayZ Forums:

http://forums.dayzgame.com/index.php?/topic/153994-early-access-important-information-known-issues/

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Cheers