Ninety minutes of cardio post-vaccine can amp up your immune system’s response.
![Exercise Makes Flu Shot More Effective man on spin bike](http://www.mensfitness.com/sites/mensfitness.com/files/blog_images/flu-shot-exercise-main.jpg?1358354834)
If you’ve put off getting a flu shot until now, when your coworkers are dropping like flies, read on before rolling up your sleeve.
If you’ve put off getting a flu shot until now, when your coworkers are dropping like flies, read on before rolling up your sleeve.