How to make the spawn a "safe" zone

Hello.

Me and a friend of mine are building a really large spawn area, and we would want people not to lose any hp overtime in that area, any help on the matter on how to do so would be nice!

 

WorldGuard is great, you can select two positions and set the region. Players won't be able to break blocks. Nor monsters and animals will able to spawn. Because you can set flags for the region!

 

I know that much I have it already. What I am wondering about is there anyway to set it so that people don't lose hp over time in the spawn zone? Do you know if I can use WorldGuard to make the spawn zone adventure, but the rest of the server survival?

 

/region flag healingarea heal-amount 2
/region flag healingarea heal-delay 1

It would be good if you research before you post this.

 

How did you find it? I am not able to find anything about that in worldguard =S