What Is Histamine? Histamine is an important part of your bodyâs immune response, but high levels of the chemical compound can cause health problems. Histamine is a chemical produced in cells throughout the body as part of the bodyâs inflammatory response to allergy, infection, or injury. When damaged or exposed to allergens, cells in the skin, nose, throat and lungs release histamine, resulting in pain, itchiness, redness, runny nose, and wheezing.
37 Weeks Pregnant. Your baby is the size of a large cantaloupe. Your doctor may check for labor signs, while your baby prepares for birth by sucking, turning and breathing in the womb. Your doctor may check for labor signs, while your baby prepares for birth by sucking, turning and breathing in the womb.
A full term pregnancy lasts 40 weeks (280 days), broken down into 13-week trimesters, starting from the first day of your last menstrual period. That's right, you haven't even conceived in what physicians consider to be the first two weeks of pregnancy. You might as well get used to this idea now: Your first day of pregnancy is the first day of your last menstrual period. Ovulation usually occurs two weeks after that, and most women conceive during that time.