The correct answer of this question is substance abuse.
<h2>Explanation:
</h2>
Some of the common side effects about the substance abuse are anxiety and poor set of coordination and inability in focusing. Some main drugs that are part of it are cocaine, nicotine and also ecstasy.
Anxiety, overexcitement, inability to focus, poor coordination, and shaking are common side effects of substance abuse. The class of drugs includes cocaine, nicotine, ecstasy, and amphetamines.However, any drug when used that can cause euphoria or feeling “high” can become a drug of abuse.
