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2. Selena Gomez
The singer and actress revealed in an Instagram post that she had a kidney transplant due to her lupus, which is an inflammatory disease caused when the immune system attacks its own tissues. In 2016, she had to cancel her tour due to anxiety and depression, which was a result of her lupus. It is a very difficult disease to diagnose, mainly because the symptoms are not that visible. Selena continues to raise awareness around the disease with her platform.