There’s evidence the effects of caffeine in a cup of tea are enhanced by an amino acid it contains, called L-theanine, if it is drunk regularly. The research finds “L-theanine may interact ...

J Gastroenterol Hepatol. 2007;22(9):1360-1368. Our study has several limitations. The most important limitation is that the comparative studies we included in our review were not randomized ...

While indigestion and gas can often cause abdominal pain, it might indicate something more serious as well. Here are some ...