When someone makes a claim or provides some information, never take it on face value.
Especially when you have no personal point of reference to what is being said or claimed.
If possible, check their credentials and ensure whoever is providing that information is “qualified” to give that information?
Are they an authority in what is being said or claimed?
Use critical thinking to understand where that information is coming from.
This way you can be more sure to make better decisions yourself, having checked out the facts