Dr. Katherine Nelson-Coffey wrote an article entitled The Science of Happiness in Positive Psychology 101. This article is based on scientific research that has been peer-reviewed. When learning about new topics especially when it comes to implementing these things in your life you want to make sure the information is from reputable sources.
In this article Dr.Coffey highlights
Definition of Happiness
Science of Happiness
The Scientific Research on Happiness at Work
Acts of Kindness Make us Happier
Measures of Happiness
How to Train your Brain for Happiness
This article has amazing resources that can be helpful to wherever you are in your journey of happiness.
https://positivepsychology.com/happiness/