The document discusses various threats teenagers face from excessive internet and computer use, including physical, mental, moral, social, and intellectual threats. Physically, it can lead to headaches, spinal issues, and wrist problems. Mentally, some teenagers feel the online world is safer and prioritize it over real-world aspects like education. Morally, it provides easy access to pornography which can corrupt young minds. Socially, anonymity online encourages unethical behavior and replaces real social interactions. Intellectually, it can be addicting and isolating treatment is difficult.