Stressed? Depressed? Sleepy? Head for the fridge. Everyday foods contain nutrients that can cure what ails you. So here's how to feel better fast - according to Prevention magazine: Let's start with stress: If you're anxious, grab a banana. Sports dieticians recommend them before athletes compete to calm their nerves. Why? Because not only does a banana give you a mild blood sugar boost for energy, it's loaded with vitamin B6 - and that helps the brain produce the feel-good chemical serotonin. So a banana can help calm your nerves in a crisis. Next, depressed? Have a tuna sandwich for lunch. A can of white tuna has about 800 milligrams of omega 3 fatty acids, and research says omega 3s can fight the hormones that leave you feeling depressed or low. Even the American Psychiatric association says they're an effective part of depression treatment. Moving on to sleepy: Pour yourself a glass of 100% orange juice - grab an orange or some strawberries. All have a ton of vitamin C - and vitamin C combats the free radicals that cause oxidative stress. That's when oxygen isn't moving efficiently through your bloodstream. Okay, one last food cure: If you're prone to nausea, cramping or diarrhea - load your sauces and salads with fresh, minced basil. Basil has a compound that kills off bacteria like salmonella and listeria, and is has anti-spasmodic properties - which means it can ease stomach cramps.