H4-CBD, or Hexahydrocannabidiol, is a type of cannabinoid, which is a semi-synthetic chemical compound. Like its better-known counterpart, CBD, H4 is believed to interact with our body's endocannabinoid system, which is involved in various bodily functions, including pain, mood, sleep, and immune response. However, H4 has more powerful effects and is less studied than CBD. It is currently the subject of scientific research to discover its therapeutic potential, its effects on the human body, and how it could be used to improve health and well-being. What we know today is that it causes a greater drowsiness effect than CBD.