Question

Effect of alcohol on brain is considered biphasic because

• A. At low concentrations, it serves as excitant or stimulant
• B. At high concentration, it acts as depressant leading to stupor or even coma
• C. It damages the liver
• D. Both A and B

Answer 1

Answer: (D)

Both A and B

The alcohol is considered as a drug which is widely consumed. When the person is drinking the alcohol, the alcohol acts as a stimulant. The person is on hyperactive state as the alcohol acts on the nervous system. At lower concentrations, the alcohol dose can act as stimulant which activates the person. When the alcohol consumption is prolonged or excessive, then it might act as a depressant. The person is in a state of depression. The person may not react to the situation or act insensible or senseless. Also excessive alcohol consumption may take the person in a state of unconsciousness. So, it is considered that alcohol have diphasic beheaviour or effect on the brain.

Thus, the correct answer is option D.