A basic review of the anatomy, physiology and personal protective equipment related to the respiratory system.

It has been found that people exposed to fire smoke had noticeable changes in their immune systems, the cells of which were ...

Heat and humidity levels are climbing across much of the United States with forecasts pointing to even more oppressive ...

For children, a normal respiratory rate varies by age. For adults, it's typically between 12 to 20 breaths per minute. Learn more.

A particularly nasty trifecta of influenza, COVID-19, and respiratory syncytial virus (RSV) is already portending a rough winter. But there’s another factor contributing to a potentially tough ...

A weakened immune system makes it harder to fight respiratory infections, including COVID-19, flu and RSV. It can also reduce the body’s ability to maintain long-term protection from previous ...

In the human body, there are three types of muscle tissue: Skeletal tissue: Skeletal muscles control the tendons, ligaments, and bones of the musculoskeletal system .