Question

reducing the amount of video games and television before sleep will help improve a persons __.
metabolism
quality of life
insomnia

Explanation:

• Metabolism is related to the body's energy - converting processes, and reducing video games/TV before sleep doesn't directly improve metabolism.
• Quality of life is a broad concept, and while better sleep can contribute to it, the more direct and specific effect here is on sleep - related issues.
• Insomnia is a sleep disorder. Reducing screen time (video games, TV) before sleep helps in getting better sleep, which can improve insomnia as the blue light from screens can disrupt the sleep - wake cycle.

Answer:

insomnia