Raynaud's Disease is a condition that affects blood flow to certain parts of the body, usually the fingers and toes. It occurs when small blood vessels constrict excessively in response to cold temperatures or stress, leading to episodes of reduced blood supply. This can cause the affected areas to turn white or blue, feel cold, and become numb. During a Raynaud's attack, blood flow returns as the body warms up, often resulting in a painful tingling sensation. While the exact cause is not fully understood, it can be associated with other conditions, such as scleroderma or lupus. Treatment focuses on managing symptoms and preventing attacks.