Comprehensive Chromosome Screening (CCS) is a technique that allows selection of the healthiest from a group of embryos. After in vitro fertilization, a few cells from each embryo are sent to the genetics lab and chromosomes are counted.
Shortness of breath has many causes affecting either the breathing passages and lungs or the heart or blood vessels. An average 150-pound (70 kilogram) adult will breath at an average rate of 14 breaths per minute at rest.Excessively rapid breathing is referred to as hyperventilation.hortness of breath has many causes affecting either the breathing passages and lungs or the heart or blood vessels. An average 150-pound (70 kilogram) adult will breath at an average rate of 14 breaths per minute at rest.
But even when shortness of breath is caused by a health condition, it can still lead to anxiety, because hyperventilation and trouble breathing can trigger anxiety attacks. When shortness of breath is caused by anxiety, you need to treat the anxiety first.