How do blinds work in heads up poker and what is their significance in the game?

In heads up Poker, blinds are forced bets that the players must make before the cards are dealt. The player sitting to the left of the dealer posts the small blind, and the player to their left posts the big blind. Blinds help create action and prevent players from simply folding until they have a strong hand. They also ensure that there is always something to play for in each hand, making the game more competitive and strategic.