As you know, autumn will be arriving soon.  The Yin organ that bears the burden of the seasonal changes from late summer to autumn is the lungs, and the corresponding Yang organ is the large intestine.  Past experience shows that the over-worked, stressed-out residents of the DC area will soon start experiencing respiratory and intestinal illnesses.  It is time to begin lung Qigong to help your lungs adjust to the change.  You can find my video of Lung Cleansing Qigong on YouTube here.  In addition to Qigong exercise, you might want to try herbal supplements.  Two that I have use and believe are effective are:  Respiratory Defense by Nature’s Secret and Clear Lungs by Ridgecrest Herbals.  I don’t benefit in any way if you purchase them, so there is no conflict of interest in my recommendation.