Q. What condition is commonly referred to as Marie Antoinette Syndrome?
Answer: Rapid greying of hair
Notes: Marie Antoinette Syndrome describes a phenomenon where hair turns grey rapidly, often attributed to extreme stress. This term is derived from the historical figure Marie Antoinette, whose hair reportedly turned white overnight before her execution in 1793. The underlying mechanism involves norepinephrine, which affects hair pigment stem cells, leading to their depletion and subsequent greying.