Cholesterol is a fatty substance widely present in the body and essential for the formation of the cells, metabolism of vitamins, hormone production and various other vital functions.
Leukemia is one of the most common types of cancer, ranging from children to old people. Leukemia usually begins in leukocytes (white blood cells), which are the cells of our immune system responsible for fighting invading germs. In this text we will address exclusively the most common signs and symptoms of leukemia.
Appendicitis is a very common disease, affecting approximately 7% of the population, making it a major medical emergencies worldwide. Appendicitis usually occurs between 10 and 30 years, but can occur at any age, although it is rare in children under 2 years.
Tuberculosis is an infectious disease caused by a bacterium known as Koch's bacillus (BK). Only 10% of individuals exposed to Koch's bacillus will develop tuberculosis symptoms. In the remaining 90%, the bacterium is controlled by the immune system, becoming inactivated, unable to be transmitted or causing any sign of disease. These patients, however, may develop tuberculosis sooner if there is any drop in their immune defenses, allowing the bacterium to proliferate.
Tiredness is a symptom extremely common in medical practice, and is generally described by patients as a lack of strength or dismay to do tasks that require effort, whether physical or mental.
Cancer is a serious disease that arises when some cell of our organism undergoes mutation, loses its natural characteristics and begins to multiply in a disorderly way, invading organs and blood vessels.
Delayed menstruation is usually the first sign of pregnancy, but dozens of other causes may explain why your period did not go down on the expected day.
The first symptoms of pregnancy are warning signs that encourage women to take a pregnancy test, be it a pharmacy test or a blood test for beta-hCG. Some women resort to home pregnancy testing when they suspect they are pregnant, but these, in addition to being unreliable, can still do harm, as explained in the article: Home pregnancy test.
Menopause is a defining moment in the lives of women. It is an inevitable event, which occurs due to depletion of eggs and the consequent end of ovulatory cycles, characterizing the transition between childbearing age and menopause.
Menstruation is an event that occurs cyclically in women of childbearing age. Their presence is extremely striking for women, not only because of possible nuisance it causes, but also because the first and last period serve as a landmark between the stages of life of women. Also, menstruation or absence of menstruation, also act as a signal to other relevant moment in life, which is pregnancy.
A brain tumor arises when some brain cells start to multiply abnormally, creating a mass inside the skull. There are several types of brain tumors, from benign to malignant, the latter called brain cancer. A brain tumor can originate in the brain itself or be a metastasis of cancer that originates in another part of the body, such as breast cancer or skin cancer, for example.
