"The mental health effects of hate"
"Toxic emotions can lead to serious health problems"
"The destructive power of hate"
Strong emotions like hate can trigger the release of stress hormones which over time leads to increased inflammation and significant health consequences"
Of course there is the other side of that coin. Isn't there always that?
"Anger and hatred can make us feel happy". WHAT?
"People over all want to experience more pleasant emotions but they have the greatest life satisfaction if the emotions they experience match those they desire."
Take your pick. Cup half full or half empty.