Nicotine certainly isn't anywhere near as harmful as other compounds in tobacco, but it is known to promote cell proliferation and angiogenesis, both of which c

Nicotine certainly isn't anywhere near as harmful as other compounds in tobacco, but it is known to promote cell proliferation and angiogenesis, both of which contribute to the growth and spread of malignant cells. https://en.wikipedia.org/wiki/Nicotine#Cancer https://en.wikipedia.org/wiki/Nicotine#Cancer