Because buoyancy is linked to the density of the liquid. Whether it can float depends on the average density of the object. Objects with a low average density can float on a liquid with a relatively high average density. medium density. Of course, that includes people.
The salt content of the Dead Sea is extremely high, and it increases as one reaches the bottom of the lake. It is 10 times higher than the salt content of the ordinary ocean, the deepest part of the lake. has fossilized water (the salt content of ordinary sea water is 35 parts per thousand) and the salt content of the Dead Sea is 230 to 250 parts per thousand. Therefore, the content of sodium chloride in the Dead Sea is relatively high, which is relatively high. means that the salt content of the Dead Sea is very high. The density of sea water is greater than that of humans, and humans produce with greater flotability, people float on water