I had been planning to try stem cells for a long time because I have joint problems. But when I read on https://ways2well.com/blog/smoking-and-stem-cell-therapy-how-smoking-affects-healing-and-results , I saw why some projects fail: stem cells, as the body's "repairers," are very sensitive to toxins from smoke. Now I think that if I want real results, it's better to quit smoking. Sometimes difficult decisions are the wisest ones.