Promise one clear payoff
A title should signal what changes for the viewer: what they will learn, see, avoid, or understand.
Use tension, not fog
“I Tried This for 30 Days” is weak without a meaningful “this.” Specificity can increase curiosity because the viewer understands the stakes.
Title and thumbnail divide the work
Do not repeat the exact same phrase in both. Let one establish the subject and the other introduce the contrast or consequence.
Deliver what you imply
A title that earns a click but damages trust is not a win. Match the intensity of the promise to the evidence in the video.