New studies find that electronic cigarettes trail other methods in helping people quit smoking, but they are growing in popularity among teens.
Younger Americans are less likely to get screened for colorectal cancer screening, a study finds. The gaps were largest among racial and ethnic minorities and socioeconomically disadvantaged individuals.
A new nanoscopic biological computer kills cancer cells, spares healthy ones.
Critics warn that lower nicotine content in the cigarettes may not translate into better odds of quitting.