Fear - weapons against human threats

Fear is the natural mechanism of people, helping us to resist or avoid threats.

The influence of cultural factors can make people fear some things, such as black cats or murder clowns, but there are also things that cause widespread fear, Katherine Brownlowe, director of the Health Department. Neurological behavior at Wexner Medical Center, Ohio University, USA, said.

"Usually, these are things that can kill you like altitude, animals, lightning, spiders, someone running behind you in a dark alley," Brownlowe told Live Science.

Fear is a natural mechanism that helps people react to threats.(Photo: Waking Times).

Fear is primarily a human survival mechanism . When our senses detect the source of the threat, the brain activates reactions to fight back or away from them as quickly as possible. This is the reaction of mammals with the name "fighting or running".

Almond lymph nodes (amygdala) in the temporal lobe are areas that control human fear. When the tension activates the amygdala, it temporarily removes the conscious consciousness of the human being so that the body accumulates all the energy facing the threat.

"The release of neurological and hormonal substances causes increased heart rate and breathing, more blood rushes to the muscles to flee or fight , " Brownlowe explained.

When faced with terror, some reactions on the ancestors' bodies in ancient times may no longer be useful for us today. For example, the hair on the upright arm along with the phenomenon of goose bumps does not seem to help us fight the enemy or flee from the threat. But our ancestors are covered with feathers. The hair on the body that makes them look bigger and stronger.

The body's reactions while we are afraid are intended to increase alertness.

The body's reactions while we are afraid are intended to increase alertness, help the body and brain focus on keeping it safe until the threat is gone.

"If the fighting or running signal ends, the brain releases neurotransmitters and hormones to reduce the heart rate, breathing slows down, stops goosebumps, helps the body feel relaxed , " Brownlowe said.