Enhancements that are acceptable in Human activites.

In my opinion it really depends on the situation and how are the enhancement are being used and the reason behind it. As Humans we always find a tendency to want to improve are skills and performance , but sometimes we tend to get a little obsess with the idea of something that is helping you advance your skills and begin to abuse it . Many enhancement I believe are acceptable in human activities are acceptable but when it becomes an addiction and it is being abused then we have a problem. It works both ways , but it should be to an extent.