Question: why does a person feel dizzy when he overdoses a drug

Michael Kimwele answered on 21 Jul 2025:

A person feels dizzy when they overdose on a drug because the excess amount of the substance can interfere with the normal functioning of the brain and nervous system. Many drugs affect neurotransmitters, blood pressure, and oxygen delivery to the brain, and an overdose can disrupt this delicate balance, leading to impaired brain signaling and reduced blood flow. This disruption can result in symptoms like dizziness, confusion, and loss of coordination as the brain struggles to maintain equilibrium and process sensory information correctly. In severe cases, the overdose may depress the central nervous system, worsening the dizziness and potentially leading to unconsciousness.