Cant see health on frames, only percentage

Why i cant see player and mob health? Even using Archaeologist it shows only 100% not health count. When i played on another vanilla server with same config it worked properly
AverageJoe wrote:To my knowledge, that's how vanilla WoW was designed. You aren't suppose to see a target's HP. If you saw it on another server, it's likely their server was modified to show targets' HP.
You'll need to download an addon if you want to see a target's HP. Some players have suggested MobHealth and MobInfo2. See this thread for more information.