Winfrey, 71, said that in addition to a loss of concentration, she also suffered from heart palpitations -- a sensation of a racing or irregular heartbeat -- which she said she did not know were a symptom of menopause, the time in life when a woman's periods stop permanently.

Oprah Winfrey has publicly shared her struggles with menopause, emphasizing the severe symptoms she experienced, including heart palpitations and a loss of concentration. Her revelation has brought renewed attention to menopause,

When I was going through menopause, I felt literally like I was going to die every single night,” said Oprah Winfrey.