He can focus on progression, increasing the intensity and time he spends on the paddleboard. I use these fitness principles as well.
That isn’t a very descriptive question because people have different reasons for liking sports
Biliary system which includes the gallbladder and bile ducts inside and outside the liver.
Any of these can be long term affects because everyone reacts differently but for short term I would have to say regressive behavior
Learned about eating healthy