Neil is nervous about an upcoming presentation he has to give at a conference. to cheer him on, neil's wife and brother decide to sit in the audience during his talk. upon seeing them in the audience, neil becomes even more stressed with the added concern that he will mess up in front of his loved ones. this example demonstrates

Social support is not always positive.

Explanation: Social support is the assistance that is usually provided by the family, friend, colleagues etc to motivate, appreciate, induce and positiveness at the time when one needs support ,help or motivation. It helps in improving and facing the unfavorable events.

Social support can also induce an adverse effect on the individual who is provided by the support due to anxiety and stress. Example of these situations are financial crisis , huge disputes etc.

According to the mentioned situation in the question, the social support gained by Neil from his wife and brother is not acting in positive manner as he has become more stressed by thinking that he can mess up the speech in front of them.