Marijuana can be dangerous if you use too much. Two studies from Canada say that people who can't stop using marijuana, even when it's hurting them, are more likely to die. They might die from suicide, accidents, or lung cancer. This is a big problem because some people think marijuana is safe. But it can be harmful, especially now that it's stronger than before. Some people can use marijuana without any problems. But for others, it can be like being addicted to alcohol. It's important to be careful and not use too much marijuana.