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.

The only way to watch “An Oprah Winfrey Special: The Menopause Revolution” live without cable is by using a live TV streaming service. We recommend DIRECTV Stream, which comes with a five-day free trial and includes ABC in its base plan. Other live streaming options include Hulu + Live TV, fuboTV, and Sling TV.

Oprah Winfrey is back on Monday night and taking on a subject that impacts over half the population but doesn't nearly get enough attention: menopause.