WEDNESDAY, July 2 (HealthDay News) -- Smokeless tobacco products (STPs), which include products such as snuff and chew tobacco, do increase the user's risk of cancer -- just not as much as smoking does.

So say researchers who examined worldwide patterns of STP use and the associated risk of cancer.

Reporting in the July issue of The Lancet Oncology, a team led by Dr. Paolo Boffeta, of the International Agency for Research on Cancer, in France, noted that STPs contain more than 30 carcinogens, including nitrosamines and metals.

I know this question sounds really odd but I have read and heard several times that all of us actually carry around cancerous cells (or the potential of it) in our bodies.

And due to stress, a compromised immune system or other variables, some of us actually get full blown cancer, and the rest of us remain with the cancer never fully realizing itself.

Does anyone know anything about this train of thought?