heart and blood vessel disorders
Raynaud Syndrome
Primary Raynaud syndrome
Primary Raynaud syndrome is much more common then secondary Raynaud syndrome. Between 60% and 90% of cases of primary Raynaud syndrome occur in women aged 15 to 40 years. Anything that stimulates the Overview of the Autonomic Nervous System , particularly exposure to cold but also strong emotion, can cause arteries to constrict and thus trigger primary Raynaud syndrome. 