Bungee jumping and hyperglycaemia

The study included 20 male novice bungee jumpers, 18–35 years, who were non-smokers and non-obese.

Participants’ glucose levels and stress hormones were increased immediately before and after their jumps, while the immune response was decreased.

When the participants were on the platform, pancreatic beta-cell function had decreased, and during the jump insulin resistance increased, both contributing to hyperglycaemia. Larger increments of cortisol before the jump, and adrenalin after the jump, correlated with decreased pancreatic beta-cell function.

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