Dr. Young Sammy Choi M.D.

As pigmentation cells stop producing the pigment, gray hair is the result. It may also be bleached by the accumulation of hydrogen peroxide, a chemical naturally produced in the body. In most cases, graying occurs by the time an individual is 30-years-old. Most people have gray hair by the time they...

According to a new and interesting study stretching before running may not prevent or cause injury but switching the routine increases the risk of injury considerably. The results of the study presented at the annual meeting of the American Academy of Orthopaedic Surgeons provided a surprise twist...

Petechiae are tiny dots that appear as red, brown, or purple in color beneath the skin. They are usually seen in clusters on the stomach, buttocks, arms, and legs. However, they may also appear inside the mouth or on the eyelids. Petechiae may indicate different conditions, which can range from...

Colds can be stressful, uncomfortable and troublesome. To add to the woes, it spreads soon from one person to another in the family. It can disrupt the normal routines for almost a week with missed school or work, and sleepless nights.How do you control the virus from spreading to everyone in your...

A recent study published in, The Lancet, shows that daily light exercise of 15 minutes per day can increase the life expectancy by three years and lower the risk of death by 14%. This is especially true in the case of people who are inactive. In this study, the researchers compared inactive people...

Marijuana or pot is one of the most commonly abused illegal drugs in the country. About one in 300 people are addicted to this drug. Marijuana is actually a mix of shredded leaves, seeds, flowers, and stems of the plant Cannabis sativa. It is also available in a concentrated form called hashish....