Brain fitness is not a complex subject. As it turns out, according to the most up-to-date research available, what is good for your body is also good for your brain. And vice versa. Get a jumpstart on brain health with these 5 habits:

1. Eat Right!

Nourish your body properly, and you’ll reap the benefits in terms of brain power. While the link between brain development in infants and children has long been known, it is now evident that eating properly during your senior years can be beneficial for an aging brain. Data from the Linus Pauling Institute at Oregon State University shows that a healthy diet helps boost alertness, reduces memory loss and can even work to prevent strokes and other physical ailments. 

A diet low in fats and high in essential nutrients is best, say the researchers. Basically, the same diet that helps you maintain a healthy weight while providing needed daily energy is a good one for your brain. You don't have to give up the occasional hamburger or ice cream cone, but balance those indulgent favorites with healthier foods like blueberries, whole grains, avocados, fish and fresh vegetables. Your brain and body will both thank you.

2. Get Enough Sleep

If sleeping like a baby has become more difficult as the years add up, renew your efforts to get a good night's rest: Clear your mind. Drink warm milk. Listen to soothing music. Wear an eye mask and earplugs if necessary. In short, do whatever is necessary to get at least seven or eight hours of restful sleep each night. Not only will you awake more refreshed, but you will strengthen your brain's neural connections and decrease your risk of developing memory problems and perhaps even Alzheimer's disease.

Physical benefits of sleep are also well-documented; scientists confirm that individuals with sleep problems also tend to put on weight and may also suffer from emotional problems. Do you need more reasons to turn in early and sleep well?

3. Exercise? Take a Walk!

It turns out that taking a walk is about the best form of exercise there is for brain fitness. It's good for the rest of your body as well. While crossword puzzles, learning a new language and reading a book are mentally stimulating, the brain undergoes a physical change when you get out and get moving. Mental health, interpersonal relationships and our perceptions of the world are changed for the better, and both mental and physical health improve. And to top things off, taking a walk in the park might actually increase blood flow to a specific area of the brain, allowing it to counteract moodiness and psychological negativity. At the very least, you'll feel calmer and happier. 

4. Drink Coffee 

It's the caffeine, of course. Current research confirms that the amount of caffeine in an average cup of coffee can enhance alertness, stimulates mental activity and improves attention span. It acts as a mild stimulant to the central nervous system which improves brain fitness and slows cognitive decline related to Parkinson's and Alzheimer's disease. So, unless your doctor has advised otherwise, go ahead and enjoy that morning coffee. Be aware, though, that excessive caffeine may be stimulating enough to keep you awake at night. So find your balance.

5. Laugh Out Loud!

Seriously, giving in to a belly-laugh is good for you! You don't have to become a stand-up comedian, but never bail out on a good time or the chance to have fun with friends. The more you laugh, the better off you are. Frequent giggles and guffaws pay dividends by reducing stress, deflecting unpleasantness and combating pain. There's a physical reason for it, but who needs to know it? Sharing a good laugh just feels good!