Color blindness is a violation of the color perception of vision. Simply put, color blind is a person who does not distinguish between certain colors or shades. According to statistics, every tenth man on our planet is color blind. The only difference between them is the type of violation, due to the number of colors that they can recognize. In the article we will deal with the features, causes and correction of color blindness. You can pass a special test for the perception of colors, with which a deviation is detected.
The concept of “color blindness” came about thanks to John Dalton, an English physicist and chemist who himself learned about his color perception disorder as an adult at age 26. This happened due to his passion for botany. When studying a flower, he noticed that in daylight, the plant seemed sky blue to him, and in the evening with a candle, the flower turned dark red. Such a metamorphosis was not noticed by anyone around, except the scientist’s brother. Then Dalton began to realize that his vision was not in order and this phenomenon was hereditary. Continue reading
When a chest hurts for no apparent reason, a lot of assumptions may arise in a woman’s head, what causes it. If the discussion involves the help of forums and unauthorized medical portals, this can cause panic and fear. But chest pain is not always dangerous and pathological. Today we look at the main causes of chest pain.
Why breast hurts: 5 reasons
Any chest pain that lasts more than 14 days is an occasion to visit a doctor.
A very common cause of chest pain in women is a change in the levels of two hormones – estrogen and progesterone. This occurs not only during pregnancy, but also with PMS, lactation, menopause, and also during puberty. Such pain goes away by itself when the hormonal level returns to normal. However, in some cases, such as breastfeeding, it is important to rule out other problems that can also cause chest pain. With a blocked duct, an infection can occur that leads to mastitis. Therefore, you should consult a doctor to exclude a possible pathology. Continue reading
Many pregnant women, instead of enjoying their excellent position, concentrate on diseases, sometimes extremely rare, like toxoplasmosis. In order to alleviate unnecessary anxiety and arm yourself with valuable recommendations for the prevention of toxoplasmosis, we will talk about this infection, its specifics during pregnancy, and also discuss tests and treatment.
Toxoplasmosis during pregnancy
Toxoplasmosis is a parasitic (non-viral and non-bacterial) disease that causes the multicellular parasite Toxoplasma gonii. An extremely unpleasant infection to carry during pregnancy. The parasite lives and multiplies in the cat family, and other mammals, including humans, can be an intermediate host. Continue reading