Cardiology

The rules for measuring blood pressure—and why they exist

The last time your blood pressure was measured, did you rush to the appointment while sipping coffee? Were you perched on an exam table with your legs dangling or your arm hanging? Were you chatting with a medical staff member ...

Immunology

How the immune system learns from harmless particles

Our lungs are bombarded by all manner of different particles every single day. While some are perfectly safe for us, others—known as pathogens—have the potential to make us ill. The immune system trains its response whenever ...

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