Dr. Mary Catherine Schumacher MD

Developing gray hair is inevitable in everyone's life time. "The color of the hair changes when the pigment-producing cells stops the production of the pigment," says Jeffrey Benabio, MD, a dermatologist at Kaiser Permanente in San Diego. The color may also be bleached by the build up of naturally...

Any woman can feel a great deal of anxiety when experiencing irregular periods. However, several women have been affected by it and have become a common problem of women these days. If a woman misses her period, it can be a sign of pregnancy, but having irregular periods may also indicate some...

What is gout in knee?Gout in knee is an inflammatory condition that causes swelling and pain in the knee joints. In the US, approximately 1-2 people in every 100 suffer from gout. Men are more likely to be affected by this condition than women with a peak-incidence age of 75. There are recurrent...

What is shivering?Exposure to cold or rapid shifts in temperature usually causes uncontrollable shivering. However, many other possible causes can cause shivering or chills. An uncontrollable shivering that persists for a longer time may indicate an underlying illness that requires immediate medical...

According to a new study, Vietnamese nail salon workers are exposed to high levels of chemical that can be harmful for the health. The study published in the American Journal of Public Health shows that these workers are exposed to unsafe levels of toluene, a solvent associated with a number of...

What are heart palpitations?Heart palpitations are when you start feeling your own heart beating. You will feel as if your heart is beating too fast, slow, forcefully, or irregularly. You will feel as if you missed a beat. The frequency and severity of heart palpitations will vary from one person to...