Medical research

Molecular imaging finds hurdle for smokers' vaccine

Researchers have yet again been sent back to the drawing board in the development of the much-sought-after vaccination for smokers, which would hypothetically inhibit the action of nicotine and its pleasure-producing chemical ...

Health

US to revise cigarette warning labels (Update)

The U.S. government is abandoning a legal battle to require that cigarette packs carry a set of large and often macabre warning labels depicting the dangers of smoking and encouraging smokers to quit.