As holiday vibes kick in, that in-flight glass of wine seems perfect. But at cruising altitude, alcohol affects your body differently—here's why, backed by aviation physiology insights.
Cabin Pressure and Reduced Oxygen
Aircraft cabins maintain pressure equivalent to 1,800–2,000 meters (about 6,000–6,500 feet) above sea level—lower than ground level, even in the Netherlands. This reduces oxygen absorption, leaving you light-headed faster and intensifying alcohol's impact as less oxygen reaches your blood.
Intensified Dehydration
Cabin air is exceptionally dry, and alcohol acts as a diuretic, worsening fluid loss. You'll feel tipsy sooner. Expert tip: Always pair drinks with water to counteract this.
Read also: Do you have to urinate more often because of alcohol?
