Social connection improves glucose regulation and thermal response

A study published in Science Advances by researchers from the Hebrew University suggests that eating in the presence of a romantic partner can improve how the body regulates glucose levels. The research, which the authors refer to as “social physiology,” indicates that social bonds can influence internal physiological processes.

In one experiment involving 108 participants consuming white bread, researchers found that glucose responses were significantly lower when eating with a partner compared to eating alone. Specifically, the glucose response was approximately 14.55% lower during social dining, with some analyses showing a difference of up to 23.9% in initial sessions. The divergence in blood sugar levels typically begins about 45 minutes after consumption, resulting in a flatter glucose curve.

The study also explored other physiological responses. In a separate experiment with 116 participants exposed to cold temperatures, those accompanied by a partner lost less body heat and recovered temperature more quickly than those alone, showing a 6.76% difference in thermal regulation.