Health
What Is a Placebo?
A placebo is an inactive treatment with no therapeutic effect of its own, used mainly in research. Here is what it is, the placebo effect, and why trials use it.
Topic
research
Science
What is the scientific method, and how closely is it followed?
The scientific method is usually taught as a tidy sequence of steps. The logic behind it matters more than the sequence — and real research rarely runs in order.
