Substance abuse is not a new problem, but with overdose calls up, it remains an ongoing concern in Pittsylvania County. PittCo Happenings spent some time talking about this issue with Dominick Grembi, the prevention program manager for Danville-Pittsylvania County Community Services. Grembi discusses how addiction begins and the science behind it, why today’s opioids can be deadly and the various programs available with his agency to address this issue.