I do that. It's just usually all at once. With my eyes closed.
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My neurologist tells me I'm epileptic and I should stay hydrated, non-sleep deprivated, and try to limit my exposure to artificial light particularly the multi-spectrum light from computer screens and TV especially when I'm interacting with said light such as typing this here to y'all or playing a video game. I can drink plenty of water and get plenty of sleep, but I find it difficult to obey the recommendation to stop gaming/web-browsing/etc.