Hacker News new | past | comments | ask | show | jobs | submit login

Not all harmful effects are caused by direct chemical reactions. For instance, asbestos causes health problems through the physical process of friction and piercing. Small particles that aren't removed by the body can do a lot of harm.





Consider applying for YC's Fall 2025 batch! Applications are open till Aug 4

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: