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.
Pregnancy has three trimesters, each of which is marked by specific fetal developments. A pregnancy is considered full-term at 40 weeks; infants delivered before the end of week 37 are considered premature.