While BDSM communities have developed risk-aware practices (such as using a "safe signal" like holding a noisy object that drops upon unconsciousness), the margin for error is measured in seconds.
Identifying scholarly papers on this subject requires distinguishing between medical definitions and the specific "recreational" or lifestyle contexts you've mentioned. Recommended Scholarly Papers
, involve the intentional restriction of oxygen to the brain to enhance sexual arousal. This practice carries severe, often unpredictable medical and legal risks. Core Definitions Erotic Asphyxiation (EA):