I love swimming. I have been holding my breath underwater since weeks within my birth.
Really!  Is it natural for an infant to be able to hold their breath under water?
Yes. it is an evolutionary response to not only hold our breath, but to undertake rudimentary locomotive swimming withing weeks of birth.
That is amazing!  I imagine it must be harder to learn the older you get then, right?
I am not sure, but swimming is a very low-impact activity.
Swimming would be good for people with arthritis or bad joints than right?
Yes because our bodies are only slightly less dense than water, water supports our weight.
I will keep that in mind as I get older and will need less impactful exercise.
local, national, and international competitions, including every modern Summer Olympics.
Science.
Swimming relies on the nearly neutral buoyancy of the human body. On average, the body has a relative density of 0.98 compared to water, which causes the body to float. However, buoyancy varies on the basis of body composition, lung inflation, and the salinity of the water. Higher levels of body fat and saltier water both lower the relative density of the body and increase its buoyancy.
Since the human body is
Swimming
Swimming is the self-propulsion of a person through water, usually for recreation, sport, exercise, or survival. Locomotion is achieved through coordinated movement of the limbs, the body, or both. Humans can hold their breath underwater and undertake rudimentary locomotive swimming within weeks of birth, as a survival response.
Swimming is consistently among the top public recreational activities, and in some countries, swimming lessons are a compulsory part of the educational curriculum. As a formalized sport, swimming features in a range of