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Learn About Antibodies and Antigens

Antibodies, or immunoglobulins, are proteins made by the body that help fight against foreign substances called antigens.

The Number That Predicts How Fast You’re Aging

When I turned 50, I didn’t care how many birthdays I had left. I cared whether I could still carry my groceries. Climb stairs. Finish...

Covid Testing: Are Nasal Swabs Good?

Planning for an upcoming family visit, travel, or because you have symptoms, what method of testing is best?

Polymerase Chain Reaction (PCR) Testing

The polymerase chain reaction (PCR) is a fast and inexpensive technique used to "amplify" - copy - small segments of DNA to enable testing.