People experience morning breath when, during sleep, reduced saliva levels momentarily make the mouth the perfect environment for bacteria to thrive, and produce foul odors.
 
Eating pungent food like those flavored with onions and garlic also cause bad breath. The lungs tend to emanate the aromatic oils of these substances soon after entering the bloodstream. Fortunately, this is only temporary.
 
More often than not, morning breath and pungent food residue is easily dealt with through brushing, flossing, and rinsing. However, in cases where brushing only masks unpleasant odors temporarily, then chances are you are suffering from gum disease.
 

Gum Disease

Plaque – the dreaded enemy of teeth – is an elaborate biofilm of bacteria that, when left overtime, attack the tooth’s enamel – causing dental caries and tooth decay. When regularly removed, plaque is unable to inflict damage to both your teeth and gums. But, failing to be consistent in keeping good oral health habits, plaque builds up, accumulates and inflicts dental and periodontal (gum) damages.
 
Once irritated by plaque-thriving bacteria, your gums suffer from inflammation. This inflammation is usually symptomatic of early-stage gum disease, or gingivitis. Gingivitis often results in a foul breath. Left untreated, it’s natural for gingivitis to progress to periodontitis, or advanced-stage gum disease.