Dr. Mark J. Mattern 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...

Listeriosis is a foodborne disease caused by the infection of the bacteria Listeria monocytogenes. This infection may cause severe symptoms in pregnant women and people who have a weak immune system. It may also affect newborns and the elderly. The symptoms are generally not very serious in the case...

Hashimoto’s thyroiditis is an autoimmune disease, wherein the immune system turns against the body's healthy cells. In people with Hashimoto’s disease, their immune system attacks the thyroid gland. The thyroid gland is a small gland located at the base of the neck just below the Adam's apple....

The word spa derives from the history of a small village in Belgium, where Roman soldiers would relax in local hot mineral springs to alleviate body aches. Bath techniques, similar to the ones the Romans took advantage of in Belgium, have been used to cure many ailments in different...

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...

Mono or mononucleosis, is a viral infection caused by the Epstein-Barr virus. This infection is also known as the "kissing disease". This condition is very common among teenagers and adults. Mono may persist for weeks and months together, but resolves on its own without any particular treatment....