What is your drop in complex performance compared to sober level if your BAL is .10?

At a blood alcohol level (BAL) of 0.10, complex performance can decrease significantly, with estimates suggesting a drop of around 30-50%. This impairment affects cognitive functions such as attention, judgment, and motor skills, leading to difficulties in tasks that require multitasking or quick decision-making. Consequently, individuals may struggle with activities like driving or operating machinery safely.