Human DNA could have ties to an aquatic environment. Maybe this is why swimming appears to increase dopamine. I noticed that it is impossible for me to be unhappy in a pool. I don't even have to be swimming per se. I can just walk, aqua jog, or float around. Any anxiety, anger, or sadness I have disappears.
Everyone in a pool is always smiling and happy. Could this be the result of DNA? Scientists claim they don't know why this happens.
en.wikipedia.org
theconversation.com
Everyone in a pool is always smiling and happy. Could this be the result of DNA? Scientists claim they don't know why this happens.
Aquatic ape hypothesis - Wikipedia

Swimming gives your brain a boost – but scientists don’t know yet why it’s better than other aerobic activities
Mounting research shows that going for a swim can preserve memories, reduce mood disorders and increase mental acuity in all age groups.
