Prophet Muhammad said:
In Psychology, looking at people below when you feel down and troubled is called “Downward Social Comparison”. Medical Research as found that “Downward Social Comparison” has shown to increase positive affect, heighten optimism, increase relationship satisfaction, and enhance self-esteem.
Downward Social Comparison and old age people
Over a nine year period, old age adults aged between 79 and 97 were interviewed in their homes with use of downward social comparison in response to task restriction, and their subjective well-being. The study found out:
See: https://pubmed.ncbi.nlm.nih.gov/23210907/ (comes under US Government)
Aspect of Gratitude
The saying of Prophet Muhammad (peace be on him) has another gem in it. It is the aspect of gratitude. Being grateful to what you have and exhibiting gratitude make a significant positive impact on the mental health.
Medical Research on Gratitude and Mental Health
An extensive research done by the American Psychological Association found a positive connection between gratitude and mental well-being. They concluded that:
Dr. Kristin Francis, MD, a psychiatrist at Huntsman Mental Health Institute, says:
See: https://healthcare.utah.edu/healthfeed/postings/2021/11/practicing-gratitude.php (Health University of Utah)
The world famous Harvard Medical School’s journal also links happiness and gratitude. It says:
Be Grateful and you get more
God Almighty says in the Quran:
This is a promise from God. The beauty is, in this verse, the reward for gratitude is left open-ended. God says He will give more but He does not mention what He will give more. Since it is open ended, it includes all the possible good things that a human can think of like: happiness, wealth, health, success, loving and caring family etc.