Dr. Stephen Masato Oishi M.D.

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...

The vulva is the external part of the female genitalia, which includes the skin between the anus and the vagina, and the lips of the vagina. An itchy vulva is medically called pruritus vulvae. It is normal for women to experience a slight vulvar itch, but if you have an uncomfortable and persistent...

We all know that potassium is one of the essential nutrients our body needs to perform different functions. Along with other key macrominerals including magnesium, calcium, sodium, phosphorus, sulfur, and chloride, our body needs potassium to maintain a healthy metabolism.Our body does not naturally...

It is normal to be confused about what to believe and what to buy when it comes to the different types of shampoos and conditioners that you see on market shelf. Some products claim to give you shiny hair, while others claim to help you achieve wavy and bouncy hair. There are hundreds of products...

If you are suffering from IBS-D, you may experience belly pain that is usually associated with irritable bowel syndrome (IBS) and you will be forced to make several trips to the bathroom. The letter "D" stands for "diarrhea".General CausesThere is no actual cause of IBS-D. However, the following are...

Contagious yawning among total strangers is very rare, according to a new study. People are more likely to yawn when they see somebody yawning, if the other person is family member or friend. A recent study shows that yawning is a sign of social empathy and emotional bonds between family and...