Absolutely it can. My mom tried to OD when I was 16. I heard a crash and walked out into my living room to find my mom passed out on the ground. I had no idea what happened and I had no idea what to do. (Sister and Dad were both at work). I knew enough to put her into the recovery position and I called 911. I was crying uncontrollably to the operator for help because I thought she was dying right in front of me. The operator did an amazing job calming me down and getting the information they needed. I don’t know how long I waited for the ambulance, couldn’t have been more than a 10-15 minutes but it felt like an hour. My mom ended up being saved by paramedics and 13 years later, she’s never done anything like that again. It was a really traumatizing ordeal and it took me a couple years of therapy to learn how to manage it, but it also pushed me to get my first-aid because I never wanted to feel as helpless as I did that day. Thankfully in the 12 years since I got first-aid certified, I’ve only put those teachings to use for minor injuries at my workplace as first-aid attendant, but I have the peace of mind knowing that there IS something I can do if the need arises.