Dr. John F Schaefer M.D.

Probiotics are microorganisms that are helpful to improve the digestive system. Probiotics are typically found in different foods and supplements. These microorganisms maintain the balance of the microbial flora in the intestines. It promotes the growth of good bacteria, and inhibits the growth of...

High blood pressure, or hypertension, is a critical condition that should be taken very seriously. If left untreated for a long period of time, it can lead to fatal consequences. Many people who suffer from this condition underestimate its significance and do not follow their doctors' orders. It is...

What is tonsillitis?Tonsils are two glands located at the back of the throat and can be seen through the mouth. These glands help prevent infections from developing in the body. Tonsillitis happens when the tonsils become inflamed or infected by viruses or bacteria. Tonsillitis is a common...

Dehydration results when you lose water in your body. The rule of thumb is, if you’re thirsty, you’re already dehydrated. Keep well hydrated by drinking plenty of water, even before you begin your outdoor activity,” said Dr. Irvin Sulapas, a primary care sports medicine physician and assistant...

What is vitamin D?Vitamin D is a unique fat-soluble vitamin that plays a significant role in many aspects of health. Also referred to as the sunshine vitamin, it stands out from other types of vitamins since the body can produce vitamin D through sunlight exposure. With 20-25 minutes of daily sun...

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...