diff --git a/health.md b/health.md
index 84d9c6ff7..27703fab1 100644
--- a/health.md
+++ b/health.md
@@ -8,3 +8,8 @@ A heatmap allows its reader to understand when your VMs or hosts are stressed. V
 
 [![](https://xen-orchestra.com/blog/content/images/2015/08/db1.png)](https://xen-orchestra.com/blog/xen-orchestra-4-4/#heatmapforinfrastructurehealth).
 
+### Event correlation
+
+This is the place to compare metrics on comparable objects (VMs to VMs, hosts to hosts).
+
+[![](https://xen-orchestra.com/blog/content/images/2015/09/correlate_small.jpg)](https://xen-orchestra.com/blog/xen-orchestra-4-6#eventcorrelation).
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