brain activity

Smell alerts us to danger before sight and hearing

We react earlier to an unpleasant smell. The nerves that detect odors begin to process those that are negative the moment we detect them.

Multiple people's heartbeats are synchronized when listening to a story

Listeners' hearts can beat in unison as long as they pay attention to the story being told.

Why is it so difficult for us to learn a language?

The key is in the plasticity and in the stability of the neurons. The higher the level of plasticity, as in the case of children, the easier it is to learn.

The FDA approves the use of the brain chip in humans

The Stentrode chip would allow paralyzed people to use digital devices and move their limbs with their thoughts.

Why can laughter be scary?

Both laughter and fear reflect high states of arousal, or moments in which we feel very intense emotions. For this reason, it is not unusual for a person who is scared to scream first and then laugh.

The human brain reacts to emoticons like real faces

According to a study, the human brain has learned to react to certain emoticons as if it were a real face. It would not be an innate neural response, but a culturally created one, which has greatly surprised researchers.

The better you sleep, the more protected you are against Alzheimer's

They associate deep and restful sleep with a lower amount of beta amyloid in the brain, a protein related to the development of Alzheimer's.

What exactly is gray matter and why is it gray?

Also known as gray matter, we find it mainly located on the surface of the brain or cortex. It acquires its natural grayish color so characteristic of neurons and glial cells, although in a living person it does not really have this color.

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