Dr. Douglas Long Nguyen M.D.

A bruise is a skin injury in which the color of the skin changes due to the breakage of blood vessels under the skin. The affected skin becomes blue or black in color, as blood accumulates just under the surface of the skin, resulting in a raised area or bump. These bumps are painful and may take a...

A number of factors, apart from your genes, decide the rate at which food is broken down in our body to release much needed energy. This includes body size, age, gender, hormonal levels, and physical activity. Thankfully, metabolic rate can be increased, irrespective of gender, body size, or age.Of...

Hypothyroidism is a very common condition in which the thyroid gland is unable to produce adequate hormones to maintain the metabolic levels of the body. Having a low amount of thyroid hormones in the blood affects the energy production in cells. A decrease in thyroid hormones leads to fatigue and...

Introduction An average man ejaculates 1/2 teaspoon to 1 teaspoon of semen. This small amount of semen contains millions of sperm cells. It only takes one sperm to fertilize an egg, but each sperm has a limited life span, which begins once it leaves a man's body.For a couple trying to have a baby,...

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...

What are night sweats?Night sweats are also called as nocturnal hyperhidrosis, which means excessive sweating during the night. Night sweats are episodes of continuous sweating at night even when the environmental temperature is very cold. Some people may sweat so extensively that they might find...