https://www.selleckchem.com/pr....oducts/pi4kiiibeta-i
I examine the relationship between unhappiness and age using data from eight well-being data files on nearly fourteen million respondents across forty European countries and the United States and 168 countries from the Gallup World Poll. I use twenty different individual characterizations of unhappiness including many not good mental health days; anxiety; worry; loneliness; sadness; stress; pain; strain, depression and bad nerves; phobias and panic; being downhearted; having restless sleep; losing confidence in oneself; not be