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What is Serotonin?

A happy woman

Serotonin is a neurotransmitter that plays a big role in many different systems of the body. We take a look at some of the things this chemical is responsible for.

What is Reactive Airway Disease?

A patient waits in an examination room

Reactive airway disease (RAD) does not refer to a singular condition, but rather refers to a group of conditions caused by a narrowing of the airways. We take a look at everything you should know about this condition.