Northern Blue Haze may sound more like a freight railroad than a marijuana strain, but it’s a crossbreed of two beloved, extremely potent indica: Blueberry, which has high THC levels, and Northern Lights. Like its ancestors, Northern Blue Haze is dominated by indica genes. Still, it’s likely quite strong, given its parentage. A few quick puffs lead to deep body relaxation, with a dreamy euphoria and limited cerebral effects. Save this strain for late at night, as it’s ideal for treating insomnia or putting a troubling day in the past. Northern Blue Haze can effectively treat both pain and sleeplessness, while some users may also find relief for anxiety or other mental health disorders.