When and What, two important questions
Regarding the question of school shootings and increasing safety the question of what to control may need to include questions of who and when. It has been said that guns don't kill people, people kill people and that is true but people can be more lethal to themselves and others when guns are more readily available. Nations such as Australia had a significant reduction in the number of suicide by gun after increasing gun regulations. So the question of who might be answered with more help for those at risk of suicide and the question of when might be answered with sleepless teens.
A very simple change in timing of high school and university class schedules has been recommended as research suggests attendance and grades are improved with a later start to the young adult's school day and also it may help with reducing impulsiveness and suicide risk. (page 89-93, When: The Scientific Secrets of Perfect Timing, Daniel H. Pink, Riverhead Books, New York, 2018) (penguinrandomhouse.com/when-the-scientific-secrets-of-perfect-timing) The book includes a range of tips and research examples about our bodies biological clock and best time to achieve more of our goals.
Sleep deprivation has been associated with oxidative stress in the brain, reduced memory ability and decision making ability. While modifying the schedule of young adult education would have some difficylty for adult caregivers and school personnel the strategy has helped increase grades and reduce dropout rates in the few places it has been tried.
Making guns less accessible has been found to reduce suicide rate in countries where it has been tried but gun access is only part of the issue. Helping reduce the number of young adults and others with suicidal tendencies is also important and modifying schooling for young adults might be a strategy that could help. The nation of Iceland has a large number of guns per capita(average number of an item per average citizen) and yet they have a much lower rate of gun violence then in the U.S.. they also have an education system that is very supportive of extracurricular activities for students. Funding is provided to support groups of sports or other interest groups and all students are encouraged to participate in some extracurricular activity.
Addition, May 18, 2018: The mental and physical benefits of adequate sleep for adolescents is also discussed in the book Nurtureshock.
Nurtureshock, by Po Bronson and Ashley Merryman (https://www.amazon.com/NurtureShock-New-Thinking-About-Children/dp/0446504130)
Disclaimer: Opinions are my own and the information is provided for educational purposes within the guidelines of fair use. While I am a Registered Dietitian this information is not intended to provide individual health guidance. Please see a health professional for individual health care purposes.