Harvey, I like the idea of you and me getting on the Gatorade payroll! Free Product!
I also have been plagued by hand swelling, and also find that hiking poles cured it.
I am positive that it is related to the process by which blood/fluids are returned to the heart. Blood is pumped out by the heart through the arteries, as we all know.
However, the return system, the veins, are a low-pressure system dependent upon muscle contraction to work. One reason that sitting on an airplane for hours may produce leg swelling, and that getting up and walking along the cabin every hour often prevents the swelling.
Lymphatic drainage may also be involved, but the time frame involved would suggest a faster working system, such as the venous return circulation.
