Twetch ·
The reason why I say this is that when you have a warm shower your body uses Nitric Oxide to dilate blood vessels, the same happens when you exercise.
One is easy to achieve, the other requires effort.
https://twetch.com/t/40cb3cd451a0a487c7df7911d2ec9e8dc0fa35092dac6a4edc1625a6c8a8fa22