Alcohol Rewires Your Brain - Dr. Sarah Wakeman

TL;DR

Dr. Sarah Wakeman, a Harvard addiction medicine specialist, argues that alcohol consumption at levels considered "moderate risk" (e.g., one glass of wine daily) is associated with every form of cancer, with breast cancer risk increasing even at low-risk limits.

Key insights

• Drinking even at UK low-risk limits (14 units/week) still raises breast cancer risk by about 5% because alcohol changes DNA through inflammation and reactive oxygen species.
• The "J-shaped curve" suggesting moderate drinking is healthier than none is a statistical artifact caused by including unhealthy former drinkers in the nondrinker reference group.
• Alcohol acts on the brain’s GABA (anti-anxiety) and endogenous opioid (natural painkiller) systems, making it an effective but dangerous self-medication for emotional or physical pain.