Researchers find that xylazine test strips are powerful harm reduction tools, but have some significant limitations to be ...

Your body constantly provides clues about your health, and one of the most revealing sources of information is your urine. While it may not be something people like to think about, urine is a powerful ...

Sound warning and color distinction: After using the alcohol tester, when the test result is less than 0.08% BAC, the green LED light is on, and there are 3 short beeps; when the test result is ...