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What causes drug withdrawal?
When you suddenly stop taking a drug that you've regularly consumed, it's hard for the body to adjust, resulting in the unpleasant symptoms of drug withdrawal.
BrainFacts/SfN
If the brain can't feel pain, why do I get headaches?
Although there are no pain-sensing fibers located in the brain, these fibers are present in nearby tissues. When they become activated, a headache can occur.
BrainFacts/SfN
How do human brains differ from those of other primates?
Humans possess cognitive abilities very different from other creatures, thanks to a number of unusual features of our brains.
BrainFacts/SfN
What causes déjà vu?
While it’s difficult to study déjà vu directly in a laboratory, scientists can test how the brain responds to familiar faces and places.
BrainFacts/SfN
Does practice make perfect?
While experts debate the type and length of practice that is optimal for success, one thing is clear: training improves performance and changes the brain.
BrainFacts/SfN
Why are some people left-handed?
There are likely advantages to having both left- and right-handed individuals in a population.
BrainFacts/SfN
Do people with depression experience worse symptoms at certain times of the day?
People with depression often report dramatic changes in mood over the course of the day.
BrainFacts/SfN
Is photographic memory real? If so, how does it work?
People with "photographic memory" are thought to be able to take and recall mental snapshots without error. But there is no evidence this type of memory exists.
BrainFacts/SfN
What are hallucinations?
Hallucinations emerge when inner thoughts and expectations overpower sensory experience.
BrainFacts/SfN
How does marijuana affect brain function?
The main active ingredient in marijuana alters the normal communication between cells and circuits in the brain.
BrainFacts/SfN
How does the brain use food as energy?
Just like other cells in the body, brain cells use a form of sugar called glucose to fuel their activities. This energy comes from the foods we consume daily, and is regularly delivered to brain cells through the blood.
BrainFacts/SfN
How does the brain handle long-term stress?
People differ enormously as to what they consider to be stressful and how they respond to it. In general, short periods of moderate stress can actually be a good thing for the brain.
BrainFacts/SfN
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