Learn a new skill. Your brain is designed to make new connections, so learning new things can increase the number of brain cells you have. Learn to do the sudoku in the newspaper, learn new vocabulary words, study a new language, or figure out some brain twisters.
Get moving. Active people have substantially lower rates of alheimers and other forms of dementia.
Spice up your food. Your brain enjoys spices as much as your taste buds do. Black pepper, cinnamon, oregano, basil, ginger and vanilla are high in anti-oxidants.
Set some goals. People who behave with a purpose are less likely to develop dementia-related illnesses that people who do not set goals.
Be social. Join a group where you can hold meaningful conversations. Conversing is one of the best ways to stimulate your brain.
Take some B12. People with low B12 levels are susceptible to memory loss.