What diving technique can help manage nitrogen uptake on deeper dives?

Using controlled descents and ascents is an effective diving technique to manage nitrogen uptake, especially during deeper dives. Controlled descents allow divers to gradually equalize the pressure on their bodies, which can help mitigate the amount of nitrogen absorbed by tissues during the descent. Similarly, controlled ascents help to manage off-gassing, as this gradual ascent allows the dissolved nitrogen in the body time to safely exit without forming bubbles, which can lead to decompression sickness.

This approach is crucial in the context of how the body absorbs and releases nitrogen under varying pressure conditions. By ascending and descending slowly and steadily, divers can reduce the risk of nitrogen narcosis and decompression illness, both of which are more likely to occur when dives involve rapid changes in pressure.

In contrast, options that suggest rapid changes in depth, staying at a consistent depth for extended periods, or undertaking frequent shallow dives do not provide the necessary control over nitrogen uptake and can increase the risks associated with deeper diving. Thus, controlled descents and ascents are paramount in ensuring safe diving practices while managing nitrogen levels effectively.