The suicide rate among teenage girls in the U.S. hit a 40-year high in 2015, according to the Centre For Disease Control and Prevention (CDC) revealed.

According to the analysis, while the suicide rate among girls aged 15-19 doubled between 2007 and 2015, for girls aged between 12 and 14 years, it tripled. This is considering government records which have been kept since 1975.

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The suicide rate among females in the 15-19 age range was recorded at 2.9 in every 100,000 people in 1975. That increased to 3.7 by 1990 before showing a decline from that year all the way to 2007 when it was recorded at 2.4. But it experienced an uptick again, doubling by 2015 to reach 5.1. The report said it was the highest suicide rate seen in 40 years — from 1975 to 2015.

At the same time, the suicide rate among teenage boys was also found to be increasing. According to the analysis, instances of young men ending their lives rose by 30 percent between 2007 and 2015. The age range of 15 to 19 saw a rate of 12 in every 100,000 people for the year 1945. That rate then went up to 18.1 in 1990 before falling to 10.8 by 2007.

By 2015 however, the rate had jumped had jumped back up to 14.2, which is an increase of 31 percent as compared to 2007.  However, the report said the rate seen in 2015 was lower than the peak rates of the mid 1980s and mid 90s.

Researchers said there can be many reasons behind the increase in suicides. Tom Simon, an author of the report said it was possible the state of the economy had an influence in this regard. “One of the factors that people have talked about as potential contributor to the trend is the economic downturn that we saw in 2007-2009. As economic problems go up, suicide rates go up,” Simon said, CNN reported.

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Violence is also regarded as one of the major factors. “Exposure to violence (e.g., child abuse and neglect, bullying, peer violence, dating violence, sexual violence, and intimate partner violence) is associated with increased risk of depression, post-traumatic stress disorder (PTSD), anxiety, suicide, and suicide attempts.20-26 Women exposed to partner violence are nearly 5 times more likely to attempt suicide as women not exposed to partner violence,” CDC states in its policy guidelines.

Other than government help and support, experts reportedly believe social media can also play an important role in curbing suicides. “There is a potential for social media to be very helpful in reducing suicide,” reports quoted Simon as saying. “It can be a great way to get the word out about the signs of suicide risk, and about ways to help.”

At the same time, Simon also cautioned of the potential social media has of being harmful.