THC (tetrahydrocannabinol) and CBD (cannabidiol) are two of the most well-known compounds found in cannabis. While they are both cannabinoids, they have different effects on the body and mind. Here are some of the key differences between THC and CBD:

Psychoactive effects: THC is known for its psychoactive effects, which can lead to feelings of euphoria, relaxation, and altered perception. CBD, on the other hand, is not psychoactive and does not produce a "high" like THC.
Legal status: THC is classified as a controlled substance in many countries, including the United States, and is illegal in many jurisdictions. CBD, on the other hand, is legal in many countries, as long as it is derived from industrial hemp plants and contains less than 0.3% THC.
Medical benefits: Both THC and CBD have potential medical benefits, but they work in different ways. THC has been shown to be effective in reducing pain, inflammation, and nausea, as well as improving appetite and sleep. CBD has been shown to have anti-inflammatory, anti-anxiety, and anti-seizure properties, and may also have potential as a treatment for certain mental health conditions.
Side effects: THC can cause some side effects, including dry mouth, red eyes, and impaired memory and coordination. CBD is generally considered to be safe and well-tolerated, although it can cause some side effects in certain people, such as fatigue and changes in appetite.

Overall, THC and CBD have different effects on the body and mind, and are used for different purposes. While THC is primarily used for its psychoactive effects and potential medical benefits, CBD is used for its non-psychoactive effects and potential therapeutic properties.