Divya Delhi:  A 20-year-old Indian college student, Vishvaa Rajakumar, won the Memory League World Championship, an online tournament that tests fast memory and recall. Memorizing 80 random numbers rapidly is a difficulty. The Memory League website ranks Rajakumar first with 5,000 points. He attends Puducherry's Manakula Vinayagar Institute of Technology. Rajakumar remembered 80 digits in 13.50 seconds and 30 images in 8.40 seconds. In his preparation, he stressed the importance of fluids for memory. Hydration is crucial for brain health. A clear throat assists with sub-vocalizing during memorizing. Instead of reading aloud, you're talking to yourself while reading. Without enough water, your speed will slow. He said drinking a lot of water makes it clearer and faster to read. Rajakumar described his championship experience. Contestants must memorize 80 random digits on a screen quickly. Participants put numbers on the recall page after hitting a button "I told The New York Times. He set a record by recalling all 80 digits. He reported his fastest time to memorize 80 random digits in this World Championship was 13.5 seconds—almost six per second. Rajakumar has big plans. In two to three months after graduation, I'll probably try to be a memory trainer and start a memory institute in India to teach others these techniques. He said he wanted to succeed.