Many diet trends will tell you what time to eat in the morning or when to stop at night in order to lose or maintain weight, but new research adds to growing evidence that timing may not be that important. Experts explain what does make a difference.

The study establishes correlation, not causation, between participants’ neural patterns and their social media behavior. So it’s not clear whether checking these apps more frequently leads to greater sensitivity to feedback, or if young people who are more sensitive to feedback are also more prone to scrolling their social feeds. The study also doesn’t take a position on whether greater sensitivity to social feedback is inherently positive or negative.