What does it mean when your period lasts more than 7 days?

In multiple sclerosis, the immune system destroys the substance that coats and protects nerve fibers in the brain and spinal cord. this causes inflammation and injury to the nerves, and the axons don't conduct impulses as well.

Which of the following identifies the main culprit for america’s increasing weight gain?

Increased use of cocaine can reduce the period of stimulation. true or false