This involuntary act is so natural that we don't notice how easy it is, until something makes it difficult, that is.

An abnormal spirometry phenotype has been found by age 8 in more than 25% of children born extremely preterm or extremely low birth weight.

Not all Plug-in Hybrids are created equally. Some offer minimal all-electric driving range. Others though, have the ability to drive longer distances without the need of an internal combustion engine.