Final answer:
Alcohol consumption affects the brain and excretory system, impairing mental abilities, motor skills, and organ function, potentially leading to fatal outcomes.
Step-by-step explanation:
The effects of alcohol consumption on the human organism range from immediate to long-term consequences. This includes social disinhibition and euphoria at lower doses to impaired motor control, judgement, and decision-making at moderate levels. At high doses, alcohol can lead to ataxia, hippocampal dysfunction, coma, cardiac arrest, and even death. Chronic drinking can cause adaptation in the reward circuitry and create withdrawal symptoms such as tremors, seizures, insomnia, and confusion upon discontinuation. Aside from its impact on the brain, alcohol can also seriously affect the excretory system, especially the liver and kidneys, resulting in long-term health consequences.
With enough alcohol consumed over time, the ability to control vital organs is compromised, leading to serious health consequences. The specific stages of impairment begin with the higher learning center, affecting memory, focus, reason, and judgement. This then progresses to loss of muscle control, deteriorating reflexes, and coordination. Eventually, the brain loses the capability to send signals strong enough to control vital organs, which can result in death.