
How cannabis impacts your brain
THC is the primary psychoactive compound found in cannabis. It is the substance responsible for the feeling people describe as being “high.”
According to the video, THC binds to receptors in the brain, which can lead to short-term euphoria and changes in perception.
When cannabis is used daily, however, the body builds tolerance. That means a person may need larger amounts to achieve the same effect they once felt with a smaller dose.

How cannabis impacts your lungs and heart
Long-term smoking can damage the lining of the lungs. This may show up as chronic cough, increased mucus production, bronchitis-like symptoms, and airway inflammation similar to what heavy tobacco users experience.
Smoking cannabis can also raise heart rate, which may place strain on blood vessels over time.
Research suggests that heavy, long-term use may be linked to a higher risk of heart attack, heart failure, or stroke in certain individuals.
The video emphasizes that many of the negative effects linked to cannabis use can improve after quitting.