Afraid of spiders? Phobias are transmitted genetically, studies say.

If you thought your phobias are only yours or you have acquired it because of your parents influences, in one way or another, well, you’re wrong.

Studies have shown that certain memories, emotions and experiences are transmitted from one generation to another. This can be done by changes in DNA structure, involuntarily.

Researchers at Emory University School of Medicine in Atlanta, quoted by The Telegraph, found that laboratory mice genetically specific information they transmit to their offspring. Specifically, the notions of trauma or stress were transmitted.

Parents were given to smell the cherry blossoms, then were given small electric shocks before they be allowed to multiply. Their young, although they were not subjected to the same treatment, showed signs of fear, when they were given to smell the cherry blossoms.

This discovery draws on how certain diseases may have a genetic component. That would explain especially phobias, and anxiety or post-traumatic stress syndrome.

Researchers have presented their study in the Journal of Neuro-Science. The discovery was that the brain, but also the genome of tested mice showed changes in areas responsible for detecting odors. This suggests that some experiences are transferred from the brain gene, then being worn by later generations.

The study opens the way for research on trans-generational transmission of various diseases. It can be related to the psyche, but also obesity, diabetes and metabolic diseases.