Your Most Asked Questions on SciShow Answered

What is a migraine, beyond just a bad headache?

• It's a type of stomach flu.

• It's a multi-symptom disorder of the central nervous system that affects the brain.

• It's a common cold that causes a stuffy nose.

• It's a temporary muscle cramp in the neck.

What chemical change in the brain is thought to cause migraines?

• An increase in dopamine levels.

• A sharp drop in serotonin levels.

• A rise in adrenaline.

• A decrease in endorphins.

Which group of people is generally more likely to experience migraines?

• Men.

• Children.

• Women.

• Elderly people.

In quantum mechanics, what does the concept of "superposition" mean for a particle?

• It can only be observed in one specific location.

• It can exist in all its possible states at the same time until observed.

• It always moves in a straight line.

• It is always at rest.

What was the main point of Schrödinger's Cat thought experiment?

• To show that quantum laws apply to large objects like cats.

• To highlight the difference between quantum laws and everyday laws.

• To prove that cats can be both alive and dead at the same time.

• To demonstrate how to observe quantum superposition.

Which of the following is a characteristic of REM sleep?

• Slow brain activity and deep sleep.

• The body is fully awake and active.

• Rapid eye movement and functional paralysis of the body.

• Dreams are rarely remembered during this stage.

What do scientists currently believe is a main purpose of dreaming?

• To sort through repressed wishes and desires.

• To allow the brain to rest completely.

• To make important connections between real-life experiences.

• To experience events that are impossible in real life.

How does napping affect a person's ability to solve puzzles?

• It makes it harder to solve complex puzzles.

• It has no impact on problem-solving.

• It helps the brain make connections and solve puzzles more effectively.

• It only helps with simple, repetitive tasks.

What is the primary function of non-REM sleep for the brain?

• To test out new knowledge in a simulated environment.

• To reinforce existing connections and practice known information.

• To process complex emotions and solve real-life problems.

• To allow the conscious brain to direct the dream's narrative.

What is lucid dreaming?

• Dreaming about everyday, boring activities.

• Experiencing vivid and stressful dreams that feel real.

• Being aware that you are dreaming and being able to control the dream's story.

• Dreaming about future possibilities to test outcomes.