Weekly Health Update Week of: Monday, January 4th, 2010 Courtsey of: Dr. Todd P. Sullivan (703) 912-7822 Mental Attitude: Benefits of laughter: Laughter increases secretion of catecholamines & endorphines, which increases oxygenation of the blood, relaxes arteries, increases heart rate, decreases blood pressure — all have a positive effect on all cardiovascular & respiratory ailments,…