Chief CNN medical correspondent Dr. Sanjay Gupta helped countless readers keep their brains sharp and effortlessly productive with Keep Sharp. In 12 Weeks to a Sharper You, he now provides a step-by-step 12-week program to help you put his transformational ideas into daily practice. As Dr Gupta writes, ‘Change is a challenge, and changing long-established habits takes effort.’ But this workbook makes it easy to apply Gupta’s groundbreaking tips and research to establish healthy behaviours for life.