New findings suggest that nicotine inhaled from e-cigarettes could contribute to cancer and heart disease, but critics warn that the data are too preliminary to draw such conclusions.

New evidence suggests e-cigarettes are not without risks to human health, but can be useful in getting people to kick their smoking habit.

Genetic variants in Alzheimer’s- and smoking-related genes appear to be under selection pressure, according to a study comparing the genomes of old and young participants.

A new device from the Wyss Institute at Harvard University simulates the effects of cigarette smoke on human lungs.

Scientists produce a detailed genomic map of mutations and epigenetic changes associated with smoking tobacco across 17 tumor types. 

A compound that degrades nicotine before it reaches the brain could serve as a successful smoking cessation therapy, according to an in vitro study.

April 2015's selection of notable quotes

In 2014, new research findings and guidelines brought increased attention to biological differences between males and females.