There ought to be a law, against this kind of deceptive "reporting." One of the deceptive tricks here is the reporting self reported descriptions of mood are unreliable. The use of qualitative information alongside factual quantifiable data is extremely deceptive and commonplace in deceptive articles like this.
The writer needs and updata, on the "Smile" research. It has been proven wrong, and used to force retail employees to smile at work. This has been proven to increase distress.

This kind of nonsense is blatantly deceptive and has led to a lot of damage. It is a clear violation of scientific research standards and is effectively a lie.