I'm bipolar and this is the best strain I've ever had for relief. Here is why: It feels like a cap is put on my head and doesn't allow my thoughts to spin out of control. I took it last night for mania and I finally was able to calm down and relax. It also has a perfect mix of able to move and able to chill. Everything is light and fun. You're clear headed but you will still forget what you went into the kitchen to get. Most importantly is the overall feel. You feel like you are in this safe cocoon. No paranoia or nervous thoughts. It will make you laugh a ton and want to have sex. About an hour in, you will be so clear headed that you will feel like the high has worn off...but if you try to do anything, you will see you are still high. I've tried a lot of strains for bipolar relief. It doesn't get better than Black Diamond!!!