When cooking make sure to include the omega-3's.  These polyunsaturated fatty acids are fundamental to our nuritional health.  They help with blood clotting and brain cell membranes, which are transmitting messages to the rest of our body.
Cardiac and stroke prevention is also a factor with these healthy oils.  Depression can be assisted with a diet high in Omega 3 fatty acids too. 

These oils come from suppliments and food sources, such as cold water fish and some vegetable have high concentrations of omega 3 fatty acids. You can get your omega 3's if your diet includes dark green vegetables, soybean oils and walnuts. For more information check the web site: www.todaysbakingtips.com/2009/09/21/are-omega-3-fatty-acids-crucial-to-our-health.html