Fitbit connect will ask if you want to SET UP A NEW DEVICE or SYNC-choose Set up a New Device. The you will have a choice of NEW USER or EXISTING USER. I had set hubby up with an account without a device in my attempts to get this flex thing so I choose that.
There is no single cause for mental health disorders; instead, they can be caused by a mixture of biological, psychological and environmental factors. People who have a family history of mental health disorders may be more prone to developing one at some point.
Disorders or substances that alter the production, release, reception, breakdown, or reuptake of neurotransmitters or that change the number and affinity of receptors can cause neurologic or psychiatric symptoms and cause disease (see Examples of Disorders Associated With Defects in Neurotransmission).