Yes, but there are worse things happening. One thing is being overweight, its not that bad in itself. We are designed to put on weight. The bad thing is being insulin resistant which is what over consumption of carbs causes. Long story short it ruins the body and brain in a way that it feels normal but the damage it caused will be obvious if you reverse it. The good news is that in most cases it can be reversed relatively easy. If i recall correctly 80% of Americans are insulin resistant.