THE TOPIC HAS TO BE VIDEO GAMES.

some video games can actually help people be more physically active. ... Playing video games may lead to some health problems. But many of these problems occur when the games are played excessively. Moderate game playing doesn't usually harm people's physical health over the long term

Explanation:

here is something to get you started

technical documents should be clear and precise. basically, clarity is the key element in a successful technical document.