If you want to be 100, be bright, pretty and clean. Keep a sparkle in your eye and in your step. Keep your hair neat and groomed. Be well-shaved. Be strong. Keep your teeth in good shape, and maintain good hygiene.

He was strong to the finish, and probably smiling when he got there, too. That's because spinach, Popeye's favorite meal, is also a great source of folic acid. The vitamin may reduce the high levels of homocysteine associated with depression.

The best way to consume whole-grain foods is in small amounts throughout the day. Doing so will maintain a steady supply of glucose in your blood, which your brain needs to release the body's feel-good chemicals.

No, we're not talking about the whites. It's actually the egg yolks that are the best source of dietary lecithin, which is essential for brain function and affects not only mood, but also memory and concentration.

When you're feeling down, cook up some salmon, tuna, sardines or other oily fish. Their high levels of omega-3 fatty acids have been shown to fight depression, moodiness and impulsivity. Plant foods such as flaxseed, soybean oil, walnuts and canola oil are also high in omega-3s.

If you're struggling with a case of the blues, try filling your fridge and pantry with these energy-rich foods. With the right grocery list, it may just be possible to eat your way to happiness!

 <b>Harry's Rules for Health<b><p>