When the number of COVID-19 cases exploded last year, so did the number of products and services promising to bolster your immunity. You couldn’t get away from talk of IV vitamin infusions, mushroom extracts, and drinkable immune-boosting “shots.” You also couldn’t get away from Dr. Anthony Fauci, who became a household name after four decades of trying to make sure Americans don’t get sick. Ever the straight shooter, he explains that you can’t buy a good immune system. “If you don’t smoke, you only drink in moderation, you get a good night’s sleep, have a healthy diet, you exercise, and you do something to reduce stress, that’s going to keep your immune system healthy, not any of these dietary supplements and herbs and other things.”
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