Did you know that the air you breathe can harm your brain, and increase your risk for dementia, anxiety and depression ? Nine out of 10 people around the world breathe air that does not meet WHO’s recommended air quality standards. Air pollution kills 7 million people every year. What are cities like London, Bogotá and Beijing doing to clean their air? Dr Maria Neira explains in Science in 5.

Did you know that you can save three lives in just ten minutes with the gift of your blood? What do countries need to do to have safe blood donation systems ? WHO’s Dr Yuyun Maryuningsih explains all you need to know to donate blood in Science in 5.

The tobacco industry continues to sell death and destruction by using flavors, packaging and advertising. Is there any “safe” product or consumption method? How does tobacco use harm your body? Join us today in conversation with Simone St. Claire on Science in 5.

Are vaccines safe? What’s actually in them? In this 2-part episode of Science in 5, WHO’s Dr. Kate O’Brien breaks down how vaccines are tested, approved, and monitored even after they reach the public. She also explains what happens if a safety concern is flagged.

Should kids just “get the disease” instead of being vaccinated? Can vaccines really overwhelm a child’s immune system? Who decides what vaccines we get—and why? If you’re a new parent with questions about vaccines, you’re not alone. In this 2-part episode of Science in 5, WHO’s Dr. Kate O’Brien breaks down the science behind childhood vaccinations, the importance of the schedule, and the truth behind common concerns.

What does a mother need to know to ensure that she has a safe pregnancy and delivery? What are some warning signs to watch for? And what are a woman’s rights while going through a pregnancy and delivery? Join our maternal health expert Dr Femi Oladapo on Science in 5.

Severe resource shortages are threatening the global response to end tuberculosis. Is the world on the brink of a global TB crisis? A quarter of the world’s population could be infected with TB and not even know it. Is there a cure? What is the treatment? How do we diagnose TB? Listen in to Dr Tereza Kasaeva on Science in 5 today.

Did you know that diseases are being eliminated by countries all over the world. In the last five years alone, 44 eliminations have been confirmed by WHO. What does it take to eliminate a disease? What needs to happen before WHO can certify an elimination? Once eliminated, can these diseases come back? Dr Jérôme Salomon explains on Science in 5.