Certain strains of Staphylococcus aureus are highly resistant to antibiotics and can be deadly. New research shows that a probiotic can destroy them.

Medical professionals often advise people with gastroesophageal reflux disease (GERD) to cut caffeine from the diet. However, little scientific evidence suggests that everyone with GERD should avoid caffeine. Learn more here.

The amino acid alanine lowers blood glucose by activating an enzyme that increases energy production in cells during fasting and exercise, a study reveals.