Erika is a very impatient and competitive corporate executive who feels that she must be the best in her field. In addition, she has a reputation for being hostile toward co-workers and employees. Erika would likely be classified as having a(n):

Type A behavior pattern

Explanation:Type A behavior pattern is characterized by intense feeling of wanting to succeed ,being highly competitive , very impatient and get angry easily , always work with a rush to complete thing in time and feel like there is no time to waste. Their need and desperation for success may make them hostile towards their colleagues because they don't want anyone to get on their way.

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.