I have NO idea how my family watches Netflix all day everyday

Going to the point where it just uses up all the bandwidth and causes massive ping spikes, I cannot even fathom how they watch it so much. I just watched the LOTR trilogy, now going into the Hobbit for the past day and a half, and my back is literally killing me. I have a severe headache from looking at a screen for so long and I feel like I'm permanently asleep due to me not moving for so long. I cannot even begin to understand how people watch this shit so religiously, it's literally draining the living fuck out of me.