I believe it was b 1999 when they had the appropriate technology
Answer: Fear and anxiety are influenced by many genes; there is no such thing as a simple "fear" gene that is inherited from one generation to the next. The genes controlling neurotransmitters and their receptors are all present in several different forms in the general population.
Explanation: BRAINLIEST PLEASE and THANK yOU
Training too many times a week and not letting your body rest.
