The U.S. Food and Drug Administration released a study Tuesday that shows teens are using drugs less in the past years, but there has been a rise in using e cigarettes, International Business Times has reported.

The data shows that since the study began in 1975, teens have been using alcohol and cigarettes a lot less. This recent study proves that using tobacco and alcohol is now at its all-time low.

Teenagers have been using synthetic marijuana at large numbers. The over the counter drug also referred to as K-2 is known to cause heart attacks. In the past year the amount of teens using it dropped by almost 50 percent.

Marijuana use fell from 26 percent to 24 percent among teens in the 8th, 9th and 10th grades combined. Yet, more teenagers have used e cigarettes than they have used marijuana and tobacco all together.  

"That disturbs me," Paul Doering, professor emeritus at the University of Florida College of Pharmacy told IBTimes. "It still argues strongly that young people feel the need to do something that involves nicotine."

Medical News Today reported that the Centers for Disease Control and Prevention revealed that the use of e cigarettes among teens have more than doubled between the years 2011 and 2012.

Even as marijuana became legalized in two states, less teens are using the product and turning to e cigarettes, USA Today reported referring to the FDA study.

"There is a lot of good news in this year's results, but the problems of teen substance use and abuse are still far from going away," Lloyd Johnston, the study's principal investigator told the paper.

Narcotic drug use has also declined according to the study.

"There's a very strong and aggressive campaign about educating the public on the risk of opioid medications as it relates to overdoses and deaths," Nora Volkow, director of the National Institute on Drug Abuse said.

"That has made teenagers aware that they are not so safe as they thought they were."

Efforts to stop teens from using all types of drugs will continue.