Mayim Bialik on vocal rest for a month

"The Big Bang Theory" star Mayim Bialik has been advised by doctors not to speak for a month after spraining her vocal cords.

The actress shared a photo of herself at the doctor's office on Twitter and wrote, "Me waiting for a check up from my ENT (ear, nose, and throat specialist). Can't speak for a month. Yup (sic)."

And later in the day, the 41-year-old actress posted a video of herself typing messages, which were then read out by her 11-year-old son Miles.

The youngster said, "This is my son, Miles, talking. I sprained my vocal cords and I can't speak - it really sucks. So, we're having a silent video with me talking. I can't talk because my vocal cords are sprained.