Humans can’t survive without taking a breath. And the lungs are the pneumatic engines that take in oxygen to be distributed throughout the body. As long as air goes in and out every 3–5 seconds, and ...

This article explains how seasonal changes in ventilation, humidity, and indoor pollutants affect cough, allergies, asthma ...

The field of intracrine physiology attempts to codify the biological actions of intracrines—extracellular signaling proteins or peptides that also operate in the intracellular space, either because ...

While systolic blood pressure typically increases during exercise as the heart pumps harder, diastolic blood pressure should remain relatively stable; significant changes, however, warrant a medical ...

Pulmonary arterial hypertension (PAH) is a medical condition in which narrowed and stiffened arteries cause high blood pressure in the lungs. It’s one type of pulmonary hypertension, which is a ...

PRESENTER:'It's lunchtime and all the children are playing outside. Jamie is really going for it, running around using up lots of energy.' PRESENTER:Let's take a closer look. PRESENTER:You can see ...

The right lung is larger than the left lung and has three lobes, while the left lung has two lobes. The lungs oxygenate blood by bringing in air through the trachea and into the alveoli. The left lung ...