What Two Drinks Actually Costs Your Training

Nobody wants this article. We wrote it anyway, because the gap between what men believe about alcohol and what the data shows is wider than for any other lifestyle variable we cover.

The measured costs

• Muscle protein synthesis: 24–37 percent lower in the 12 hours after a moderate dose.
• Deep sleep: reduced by roughly 20 percent even when total sleep time is unchanged.
• Next-day power output: down 5–11 percent in our jump and sprint testing.
• Appetite regulation: next-day intake up about 300–600 kcal, mostly from low-protein, high-fat food.

This is not a lecture. It is a budget. Two drinks on a Friday costs you Saturday’s session quality, most of Saturday night’s recovery, and about a third of a week’s worth of adaptation. If you are training for something, move the drinks to after the event you care about.

You cannot out-train alcohol. You can only decide which weeks you are willing to pay for it.

— Dr. Elena Vasquez