This Merle Haggard song has become synonymous with his entire career, but he often said he regretted ever writing it.

A somewhat troubled childhood led to years spent behind bars for Merle Haggard.

VO₂ max refers to the maximum amount of oxygen your body can absorb and use during exercise. It measures your aerobic fitness levels. If you’re looking to improve your aerobic fitness ...

There are many who feel disgraced megachurch pastor Ted Haggard should not have reopened old wounds by returning to the public eye just two years after a drugs and sex scandal brought him down and ...

Ex-evangelical leader Ted Haggard, who fell from grace after the exposure of his sex and drug scandal two years ago, recently opened up about the dark secret from his past that likely led to his ...

A PaO2 test measures partial pressure of oxygen, or PaO2—the oxygen pressure in arterial blood. The PaO2 reflects how well oxygen is able to move from the lungs to the blood. It is often altered by ...