history: I love to swim and it keeps me in shape
knowledge: As a result, swimming is “low-impact” compared to land activities such as running.
response: Nice!  It's a good "low-impact" sport, compared to running.
history: I love to swim and it keeps me in shape
Nice!  It's a good "low-impact" sport, compared to running.
Yes and I have lung disease its very easy for me to exercise in water, much easier than a gym workout
knowledge: Swimming is the self-propulsion of a person through fresh or salt water, usually for recreation, sport, exercise, or survival.
response: Oh I see!  And swimming is also useful for survival, right?
history: I love to swim and it keeps me in shape
Nice!  It's a good "low-impact" sport, compared to running.
Yes and I have lung disease its very easy for me to exercise in water, much easier than a gym workout
Oh I see!  And swimming is also useful for survival, right?
Yes and its also low impact on my bones and joints. Older people really benefit from swimming
knowledge: Since the human body is only slightly less dense than water, water supports the weight of the body during swimming.
response: It's low-impact because the human body is only slightly less dense than water, which allows the water to support a person's weight
history: I love to swim and it keeps me in shape
Nice!  It's a good "low-impact" sport, compared to running.
Yes and I have lung disease its very easy for me to exercise in water, much easier than a gym workout
Oh I see!  And swimming is also useful for survival, right?
Yes and its also low impact on my bones and joints. Older people really benefit from swimming
It's low-impact because the human body is only slightly less dense than water, which allows the water to support a person's weight
Oh ok that makes a lot of sense and I noticed I do not get as short of breath swimming versus gym workouts
knowledge: Higher levels of body fat and saltier water both lower the relative density of the body and increase its buoyancy.
response: Interesting.  Did you know that buoyancy can depend on body fat and saltiness of the water?  Higher leves of both can make a person more buoyant.