Northern Lights and Gorilla Glue are two of the most popular OG strains around. Northern Lights is known for its pleasant effects and long-lasting high, while Gorilla Glue is the poster strain of couch lock strains. But don’t let popularity decide what the most potent strain is. Instead, try to grow it yourself. You can get a more potent couch-lock feeling from any indica or indica hybrid by harvesting at the right time. And when it comes to getting that strong couch-lock effect from indica cannabis, it’s all about harvesting late.