Hal Watts, who has died aged 89, was a leading scuba diver, setting numerous depth records before helping to regulate the ...

Conclusions: Scuba diving may have long-term negative neurofunctional effects when performed in extreme conditions, namely cold water, with more than 100 dives per year, and maximal depth below 40 m.

which meant he did not notice the audible and visual alarms sounding on breathing apparatus Contravening rules for exceeding maximum diving depths on repeat dives Failing to have an adequately ...