Herbal Cigarettes

Do you think that smoking herbal cigerretts are harmful to your heath or are some of them good for you to smoke? Please let me know as I have smoked lots of them since quitting smoking regular cigarettes. For me it seems like the real thing kinda...

I don't know of any studies that show the risks of smoking herbal cigarettes. Smoking results in a quick entry to the bloodstream of the chemicals in the herbs. The high heat of burning can change the chemical composition of the herbs.
Herbal smoking mixtures are sometimes used for specific medicinal purposes. The herbs in these mixtures and their effects are generally known from traditional use rather than by scientific study. Medicinally, they would not be used long term in large quantities.
It's probably safe to say that smoking herbal cigarettes is more harmful than not smoking at all.