Abs Workout: Get Six-Pack Abs and Lose Belly Fat Fast

Achieving washboard abs and losing belly fat involves a combination of high-intensity cardio and core-specific challenges like the 4-week plank. Discover why crunches alone won't give you a flat stomach and how to safely target the lower abs.

Six Signs of Exercise Intolerance

Published Sep,01 2011 | By John Gregory

Exercise intolerance is a common symptom among those who suffer from heart disease, mitochondrial disease or metabolic disorders. In such cases, the normal conversion of food or oxygen into energy is disrupted, leaving the patient without an adequate supply.