Your functions and blood are all moving by the force of gravity, so when everything is raised or lowered(moving your arm), your pulse wave changes. This can also result from subtlty in higher blood pressure, when activity occures. Just as your pulse waves changes in the rest of your body when excersising, you will have a slight change in pulse when simply moved your arm up and down, you're gettin' that blood pumping! ;)
This is important because scientists found that exercising promotes chemicals in the brain that make you feel better and more relaxed. When exercising, the brain releases endorphins, which helps a depressed mood which Andre seems to have.
Identifying _prodromal_, or minor symptoms of psychosis, such as unusual thought content, paranoia, odd communication patterns or delusions is an helpful in determining which factors and events lead to schizophrenia...
