There are different levels of quality when it comes to scientific research, especially research that has to do with people.
Spending a little time evaluating what kind of study you are looking at can help you determine whether it's worth your attention (and sometimes, your emotions).
The organization EUFIC provides a great infographic to explain the hierarchy of scientific evidence. It shows what some types of studies are called and some things to keep in mind when evaluating them.
If the study you want to evaluate doesn't self-identify its type (in the title, for example), the Centre for Evidence-Based Medicine (CEBM) at Oxford University has some tips.