1. The incident caused a public outcry over the harmful effect of addictive games on minors and triggered calls to limit the sale of such games.
2. They may also counteract the effect of harmful free radicals when they enter the body and may affect chemicals that alter nerve control.
3. If they are negligent and forward inaccurate information, the effect on society can be quite harmful.
4. A man almost died after eating rat poison to prove it had no harmful effect on humans.
5. Wang started collecting evidence on the harmful effect of alcohol from news reports and by interviewing victims and their relatives.