Health benefits and physical effects of swimming

Swimming offers various physical health benefits, including efficient calorie burning, improved respiratory function, and cardiovascular strength. Engaging in swimming for approximately one hour can burn around 500 calories because the activity utilizes nearly all major muscle groups. It is also noted for having a lower risk of injury compared to activities like running or weightlifting. Additionally, swimming can assist in managing blood glucose levels for individuals with type 2 diabetes.

Regarding height, while swimming does not biologically lengthen bones—as genetics account for 60 to 80 percent of height—it can influence physical appearance and posture. The buoyancy of water allows for spinal decompression, which can lead to a temporary height increase of 1 to 2 cm by allowing intervertebral discs to expand. Furthermore, swimming strengthens core, back, and shoulder muscles, promoting better postural realignment that can make an individual appear taller.