Head Cracker is a sativa-leaning hybrid known for its cerebral intensity and euphoric effects. This cross of Headband and Green Crack. Reviewers have shared that Head Cracker is all about mental stimulation and energy. They say it starts with a rush of cerebral intensity that increases alertness and focus. This mental clarity is accompanied by an increase in energy and sociability, making it an excellent strain for creative endeavors, brainstorming, or simply staying engaged.