Flu Shot While Pumped

Researchers have found that mild exercise before getting a flu shot might make the vaccine more effective. A small study found that lifting weights before a vaccination increased antibody response in women, while reducing it in men.

In men, cell-mediated response (the activation of white blood cells and other kinds of cellular defenses) was increased. The study suggest that exercise increases the number of the immune cells that arrive at the muscle tissue, which increases activity in the lymph nodes, leading to a more efficient immune response. Check it out for yourself.