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Why do we feel better when we are sad when we hug a teddy bear?

A study published recently in the Journal of Consumer Research revealed that when people feel sad, they would rather hug a teddy bear than look at a beautiful piece of art or a sunset, regardless of their age. Behind this preference, according to Chris Janiszewski, from the University of Florida (USA), there is an "animal instinct" that we share with other mammals.

Specifically, when any mammal is injured, has been attacked or is sick, its brain is programmed to respond positively to tactile stimuli , releasing neurotransmitters associated with well-being and pleasure. On the contrary, when we are in a good mood, visual stimuli provide us with more pleasure than those we experience through the rest of the senses. And therefore, in a state of happiness we enjoy a visit to an art museum much more.

This is how an hour of walking through nature influences your brain

After a 60-minute walk in nature, activity in brain regions involved in stress processing decreases, a new study concludes.

How does a 'zombie' bacterium come back to life?

Scientists have detected unexpected activity in physiologically dead bacteria, deciding when it is safe to 'resurrect' if the environment is friendly to them.

Feeling alone and unhappy accelerates aging more than tobacco

They conclude that psychological factors, such as feeling unhappy, lonely or desperate, add up to 1.65 years to biological age, more than smoking.

They discover a new species of mini orchid in Peru

It is the smallest orchid species that we can find in this South American country.

Santiago Ramón y Cajal, the neuron explorer

He coined the neural theory in which the nervous system was a succession of cells that communicated with each other, but were physically separated from each other.

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