Discover how mRNA vaccines help your immune system fight viral infections and how this decades-old technology was used to create COVID-19 vaccines. — In the 20th century, most vaccines took over a decade to research, test, and produce. But the…
Explore how your immune system’s vast network of cells, tissues, and organs coordinate your body’s defenses against bacteria, viruses and toxins. — The immune system is a vast network of cells, tissues, and organs that coordinate your body’s defenses against…
View full lesson: When it comes to what you bite, chew and swallow, your choices have a direct and long-lasting effect on the most powerful organ in your body: your brain. So which foods cause you to feel so tired…
View full lesson: Your body produces more than a liter of mucus every day, and when you’re sick, it can be hard to miss. But what exactly is mucus? And what does it do, besides making you miserable? Katharina Ribbeck…