Why is Acrophobia a reasonable phobia?

Which hormone is secreted by alpha cells of the islets of Langerhans of the pancreas? Does a horse have thyroids? What are physical benefits of exercise? What is wrong with my chin it grew out and its has two bones coming out but soft in the middle? Is Life Boring? Is a ten year old suppose to be having breasts or growing breasts? At what age should your child see an orthodontist for braces? How is prostate cancer detected? What is matogyaliaphobia? What are disorders that result from excessive or inadequate production of hormones? Why are spinners of washing machines made to spin at very high speed? Can you sue for being fired for a medical condition? Exercise can reduce levels of this bad cholesterol? How does the body compensate for anemia? Does ponds cream remove acne? What is a peripheral region? Do people with ADHD get drunk faster? How rare is H1N1? Do all pregnant women get constipated? What is the function of the spleen in a perch?