What are observable signs that may indicate substance use?

Physical signs are an important indicator of potential substance use. These signs may include changes in appearance, such as weight loss or gain, poor personal hygiene, dilated or constricted pupils, frequent nosebleeds, and tremors or changes in coordination. Additionally, smells associated with substances, such as alcohol or drugs, can also be noticeable.

Understanding physical signs is crucial as they provide tangible evidence that can support further investigation or intervention. For example, if an individual exhibits unusual physical symptoms alongside other factors, it can serve as a strong indicator of possible substance use, making this option a key area of focus for monitoring and assessment.

Other options like behavioral changes, environmental factors, and emotional reactions can also hint at substance use, but they may not be as immediate or as definitive as the physical signs that can be directly observed.