Jacky jack's Blog (1)

Swimming is a form of exercise that can greatly improve the oxygenating capacity of the heart and lungs especially swimming under water.  Cognimaxx XL  The amount of time you spend holding your breath while swimming under water should be built up gradually. Swimming under water should not be attempted if you have any form of heart or blood vessel disease unless you have clearance from your doctor.Another type of exercise that can be…