Black Jack has nice bodily effect, often described as relaxing. The strong pull of this strain may slow users down, but will not necessarily lead to immobilizing couchlock. The sense of physical relaxation can contribute to relief from chronic pain and can also be a remedy for insomnia. The mental effects of Black Jack are often described as more psychedelic than cerebral -- visual distortions, strong time dilation, and a generally trippy sharpening of the senses may not be uncommon. Because of the possibility of couchlock and this strain’s other disorienting effects, it is recommended for evening or nighttime usage, as a social lubricant or an individual sleep aid.