Final answer:
The central ideas of the text focus on the negative impacts of excessive Internet and video game usage and the exploration of solutions to change our relationship with technology.
Step-by-step explanation:
The central ideas of the text can be found in statements C and F. Statement C discusses how excessive Internet and video game usage negatively impacts the lives of those who experience it, even though it hasn't been defined as an official addiction. Statement F highlights the challenge of changing our relationship with technology due to society's dependency on devices, but emphasizes that health and technology professionals are exploring solutions.