Why does continued breastfeeding decrease the chance of pregnancy? (Hint: Think about the effect the breastfeeding hormones have on estrogens and progesterone.)?

Describe the hormonal changes during pregnancy and the effect of these hormones.

A couple living in Florida is trying to have a baby, but they are having trouble getting pregnant. The male is very light skinned yet enjoys spending as much time as possible outdoors in the sun. From the male's perspective, why might he be contributing to the trouble with getting pregnant? Excessive ultraviolet light exposure can reduce folate levels, and folate is required for normal sperm development. Excessive heat from the sunlight inhibits normal sperm production; thus, he probably does not have enough sperm. The male does not have enough melanin production to support normal sperm development. Excessive sunlight exposure can rapidly increase folate levels, which then inhibits normal sperm development. Normal sperm development occurs best in colder temperatures; thus, living in Florida he has a reduced chance of getting his partner pregnant.

Describe the most significant hormones responsible for sex differentiation. List the most important hormones during puberty. Describe the significance of hormonal regulation during pregnancy and present the changes in hormonal balance during menopause.

Please give examples to elaborate the effects of malnutrition on mother and child during pregnancy?

Compare and contrast the following terms: You are invited to a middle school to address 11- to 14-year-old adolescents and discuss puberty. Plan a program to describe how females are affected by estrogen and progesterone and how males are affected by testosterone.

Why does menstruation occur?

Discuss the hormonal changes that occur during pregnancy

Which pituitary hormone might contribute to multiple births and why?     Which pituitary hormone might contribute to multiple births and why?          Luteinizing hormone stimulates ovulation. Ovulation of more than one egg cell per cycle can result in the formation of multiple embryos.                  Follicle-stimulating hormone stimulates follicle maturation allowing more than one egg cell to develop during one cycle.                  Oxytocin promotes uterine contractions necessary to deliver multiple babies.                  Prolactin stimulates milk production to support multiple births.

What are the actions of CRH, HPL, oxytocin, and prolactin during pregnancy?