Over 16,000 pairs of twins took part in the study.
Former New York City Mayor Rudy Giuliani described Kamala Harris as a "horrible prosecutor" and "bully" Friday, as he officially endorsed President Donald Trump's re-election campaign.
Some 15 million U.S. adults have the condition according to the U.S. Centers for Disease Control and Prevention.
In North America, air pollution wipes 1.4 years off people's lives on average, which could mostly be avoided if we stopped burning fossil fuels.
The FDA hopes the policy will curb "epidemic levels" of youths vaping.
"Vaping is often quoted as being less harmful than smoking. But less harmful isn't the same as safe," Dr. Deirdre Gilpin of the School of Pharmacy at Queen's University Belfast told Newsweek.
The study of more than 40,000 adults found that those who smoked marijuana frequently were three times more likely to suffer a stroke.
Concern over the possible health implications of e-cigarette use is growing as more people take up vaping and vaping-related injuries become more commonplace.
U.S. health body finds a link between vitamin E acetate and e-cigarette illness.
A researcher told Newsweek the study suggests smoking is not only bad for our physical health, but our mental health, too.
The scientists said that this knowledge may help to deter some people from taking up the habit or help others to quit.
Jonathan Bird, who went viral after a restaurant owner sprayed him with a fire extinguisher for smoking in Salt Lake City's Gallivan Plaza, is suing his assailant for damages.
"The trauma that he caused to his lungs is significant," the victim's brother said.
Even just seeing trees out your window might be enough to help you stop smoking, drinking or eating unhealthy food, a new study suggests.
The sci-fi horror show, whose third season was released on Thursday, was labeled the worst offender for depicting smoking on screen.
The study doesn't change the fact that smoking is harmful, a scientist stressed.
"We ought to be able to find the greater good and do this," Senator Tim Kaine told Newsweek.
Norway's new Elderly and Public Health Minister Sylvi Listhaug does not "plan to be the moral police, and will not tell people how to live their lives."
Air pollution could be killing more people than smoking, new research suggests.
The California senator graduated from Howard University in 1986, but Tupac Shakur's first album wasn't released until 1991.
In the United States, 1.3 million more high school students use e-cigarettes now than in 2017.
The rapper mocks the president in three videos shared to his 28.5 million-strong Instagram following.
"He's the best thing we've had since Thomas Edison."
A Missouri Republican seeking a House of Representatives seat has a history of making homophobic remarks, including in a 2012 newspaper ad in which he said being gay is more deadly than smoking.