Oprah Winfrey collapsed from heat exhaustion during a recent visit to her hometown of Kosciusko, Mississippi. The 52-year-old was in town for the opening ceremony of Oprah Winfrey Boys & Girls Club, when temperatures pushing 100 degrees and high humidity caused her to feel unwell.

An onlooker tells publication National Enquirer, "Just as Oprah was about to cut the ribbon, she collapsed. She was getting dizzier and dizzier, she started sweating profusely and her vision became blurred. Her knees were buckling under her and she nearly blacked out.

"Oprah quickly stepped back and found a seat. She tried to revive herself by putting cool compresses on her head and drinking liquids. Oprah made light of the situation, telling everyone it was due to the heat."

(This news article provided by World Entertainment News Network)