Why Some People Can’t Feel Joy—and It Starts in Childhood #fyp #viral #tiktok #mentalhealth #childhoodtrauma 1. Childhood adversity (abuse, neglect, chaotic homes) is linked to reduced positive affect—a weakened ability to feel or sustain positive emotions. 2. Low positive affect is strongly associated with higher risk of mental health problems across diagnoses. 3. Positive affect acts as a mediator, meaning early trauma may increase psychopathology partly because it dims the “happiness system”.