Brain Effects
THC primarily exerts its psychoactive effects by binding to what type of receptor in the brain?
CB1 receptors.
What common eye symptom happens after using marijuana?
Red/bloodshot eyes
THC slows reaction time. What activity becomes especially dangerous?
Driving.
What is the name of the condition where someone cannot stop using marijuana even when it causes problems?
Cannabis Use Disorder.
“Marijuana can’t affect your driving because it’s natural.”
False.
Name the brain region responsible for short-term memory formation that shows reduced activity and disrupted signaling after THC use.
The hippocampus.
Marijuana use increases what vital sign that puts strain on the heart?
Heart rate.
Marijuana can reduce motivation and interest in activities. What is this often called?
Amotivational syndrome.
What is one common withdrawal symptom?
Irritability, trouble sleeping, decreased appetite, or anxiety (any one).
True or False: You can still get addicted to marijuana.
True.
Chronic heavy cannabis use has been shown to reduce gray matter volume most consistently in what region of the prefrontal cortex?
The orbitofrontal cortex.
Heavy, long-term smoking of marijuana can irritate the lungs and cause what condition?
Chronic bronchitis.
What short-term ability is often most affected, making it hard to remember conversations?
Short-term memory.
THC affects what reward chemical that makes the brain want to repeat use?
Dopamine.
Myth or Fact: Today’s marijuana is much stronger than it was in the past.
Fact.
Which endogenous cannabinoid does THC mimic, leading to overstimulation of the endocannabinoid system?
Anandamide.
Eating edibles can cause delayed effects, leading people to do what by mistake?
Overconsume or take too much.
THC can increase what emotion that leads to panic or paranoia?
Anxiety.
Marijuana withdrawal often peaks around what day after quitting?
Day 2–3.
True or False: Edibles work instantly.
False — they can take 30–90 minutes.
Marijuana can lower activity in this front part of the brain that helps with decision-making.
The prefrontal cortex.
Heavy use can lead to repeated vomiting and stomach pain, known as what syndrome?
Cannabinoid Hyperemesis Syndrome (CHS).
High-potency marijuana products increase the risk of what severe mental health event?
Psychosis.
For heavy daily users, withdrawal symptoms can last up to how long?
2–4 weeks.
Myth or Fact: Vape pens and concentrates often have extremely high THC levels.
Fact.