Even if you don't care about raising your IQ, keeping your brain active with puzzles can help delay the symptoms of dementia and Alzheimer's disease.

Studies show that keeping the mind active through puzzles and other problem-solving activities can reduce the amount of brain cell damage that occurs in Alzheimer's patients. It also supports the growth of new nerve cells and strengthens the connections between them.

Researchers have also found a correlation between the number of years someone has been solving puzzles and the likelihood that they will develop Alzheimer's. So, the sooner you start making puzzles a regular part of your life, the better. It's never too early to start protecting your brain.