Simplify the following text for a Grade 7 native English-speaking person.
Original: Deepak Chopra ( ; born October 22 , 1946 ) is an Indian American public speaker , and writer on Ayurveda , spirituality and mind-body medicine .
Simplified: Deepak Chopra ( ; born October 22 , 1946 ) is an Indian medical doctor and writer . He has written about spirituality and topics in mind-body medicine .