Smoking effects the flow of blood throughout our bodies.
There are only two structures in the adult human body which, under normal circumstances, lack a blood supply in adult life.
One, the cornea of the eye which gets its nutrition from tears.
Secondly, the intervertebral disc, which obtains its nutrition from the convection and diffusion of nutrients from the end plates of adjacent vertebral bodies.
By smoking cigarettes, nicotine and carbon monoxide infuse into the blood stream and then into body tissues.
These poisons have a particularly destructive effect on intervertebral discs (and corneas) because of their precarious nutritional status.
Read the rest of the Burton Report here > Smoking Cigarettes Effects on the Human Spine