Final answer:
It is true that consuming alcohol and cannabis together can result in higher THC levels in the blood and greater intoxication due to the synergistic effects of both substances on the body's absorption and impairment functions.
Step-by-step explanation:
It is true that someone who consumes alcohol and cannabis at the same time may have higher levels of THC in their blood than someone who only consumes cannabis. This could potentially lead to greater levels of intoxication due to the synergistic effects of alcohol and THC on the body. Alcohol is known to increase the absorption of THC, the main psychoactive compound in cannabis, enhancing its effects. Not only does alcohol consumption lead to changes in consciousness, such as feelings of euphoria or sedation, but it also has a wide range of effects on coordination, reaction time, and judgment. Combined with THC's ability to alter senses, mood, and cognitive functions, the concurrent use of both substances could intensify the impairment of motor control and decision-making capabilities.