Hangover symptoms suddenly worse? It could be due to Long Covid. Researchers found that alcohol tolerance could decline sharply.

Patients report sometimes serious symptoms. After just four weeks, abstaining from alcohol has a significant effect and has a positive effect on the body. They warn that the virus and inflammation in the body could weaken the blood-brain barrier, which could lead to more severe hangovers because more substances, including alcohol, can reach the brain. The study authors define “alcohol sensitivity” as a range of adverse reactions to alcohol, including fatigue, brain fog and headaches.