From my experience, many people underestimate the dangers of swimming. I personally realized this only after I nearly drowned in a 2.5-meter-deep swimming pool. There are countless videos warning about rip currents, but in reality, you don’t need a riptide to drown — even a calm swimming pool can be deadly if you’re not physically fit. Swimming is a bit like being in a state of weightlessness. To exhale effectively, our diaphragm muscles need a point of support. But in water that support is missing. If water accidentally enters the lungs, you need to forcefully exhale to expel it. However, doing this while floating is extremely difficult for somebody not fit enough or already exhausted by swimming , and that’s what makes it so dangerous.