Welcome to Science Mondays. Each Monday, Geek Alabama will feature a video or article about the world of Science. Our goal is to feature science topics and make you smarter, and in our world today, it’s a great thing to make people smarter.

As Covid-19 vaccines make it into more and more people’s arms, you may be hearing that the second dose can be a little rough. But, while it may be unpleasant, these intense side-effects are actually a sign that the vaccines are working. And there may be even more good news when it comes to people who’ve already had COVID-19 getting the vaccine.

See why getting the COVID shot is still very important from SciShow below.

Science Mondays: Why Haven’t We Built A Better Battery Science Mondays: 3.14 Reasons To Love Pi(e) Science Mondays: Tractor Pulls: It’s Not What You Think