Why do you get calloused hands when youre bulimic?

What is rigid fixation? Is a fountain a closed system? how much do you sick? Why could your tongue feel sore? Does a 14 year old have to see non custodial parent if emotional abuse? How does vinegar and water help stop the black death? If you are 15 and think What if your pregnant How do you kill it? Describe how the endocrine and nervous system are related? When is herpes simplex 2 contagious? What substances affect the heart? Why do people die in the sleep? Does toxic black mold occur around homes? What is the similarities in circulatory system between a human And bees? Is it possible for 2 parents with down syndrome to produce a child with no non-disjunction disorder please explain why? What disease increases airway resistance? How can osgood-schlatter disease be prevented? What happens to the distance between interference fringes if the separation between two slits is increased? What was the purpose of the laserphaco? My period is usually heavy and have been having it every month but this month im barely bleeding its a light brown and doesnt fill a pad just like spots it and when i wipe its nothing whats this mean? Can you get a piercing while breastfeeding?