Kids Addicted to Minecraft?

My cousins used to be normal. They would rarely play on their iPads and would rather go out and play soccer. Now, they are obsessive about it, cry when it's taken away, and won't stop for 8-10 hours. Their parents are at a loss. They cry and cry and
cry when their iPads get taken from them. They used to be slim, now they are chubby. I am desperate now. I have shown them Minecraft, and practically destroyed their parents lives. I can't bring myself to see them. They blame me for their problems, and because of that, the no longer talk to my parents. I have prayed and prayed that they would stop. My world has been turned upside down. Exams are coming up, and I cannot focus on even studying for it. They have changed drastically. I just want help for them. Please. Help them. Help me. Please.

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