Qi gong is a type of meditative exercise which is great for self healing it is based in traditional Chinese medicine which is very effective. I started doing this specific routine right before bed and after one week of consistent practice every night my sleep felt amazing I slept super deeply and fell asleep quickly and woke up super energized. I recommend it doing every night one hour before bed and then once more right before bed and avoiding phone one or two huts before bed hope this helps;-)