The claim originates from an article on Us Weekly, where Meghan Trainor mentions she "cannot smile" after getting "too much Botox" in her face. Us Weekly is a well-known entertainment magazine that often covers celebrity news and personal stories. While it is a reputable source for entertainment news, it is not a medical journal or a primary source for medical information. Therefore, it's important to cross-check this claim with medical sources. According to Dr. Olivia Martinez, a dermatologist specializing in Botox treatments, difficulty smiling can occur if Botox weakens the muscles around the mouth. This effect is temporary and will wear off as the Botox dissipates.
The idea that Botox can affect one's ability to smile is not new and has been documented in medical literature and patient experiences. The specific claim by Meghan Trainor appears to be a personal anecdote rather than a new medical discovery. It aligns with known side effects of Botox when used inappropriately or in excessive amounts.
The claim that "Botox causes an inability to smile" is partially true. Botox can temporarily affect the ability to smile if it paralyzes the muscles around the mouth. However, this effect is temporary and typically resolves as the Botox wears off. Meghan Trainor's experience is consistent with known side effects but does not represent a permanent condition.