How to Increase Brain Power in 7 Minutes?
Spend 2 minutes practicing deep breathing to increase oxygen flow to the brain.
Spend 2 minutes on a quick memory game, like recalling as many items as you can from a specific category.
Spend 3 minutes solving a few Sudoku puzzles or math problems to stimulate logical thinking.

Here are some other ways to increase brain power:
Exercise: Regular exercise improves blood flow and reduces stress.
Sleep: Get enough sleep to avoid impairing cognitive function.
Eat brain-healthy foods: Eat oily fish, berries, whole grains, green leafy vegetables, nuts and seeds, coffee, oranges, and avocados.
Take vitamins and micronutrients: Stock up on vitamins and micronutrients.
Socialize: Socialize with others. Learn something new: Learn a new language, start a new hobby, or learn to play an instrument.
Read: Read and keep up on current events.