I recently returned from a week-long test of my physical abilities and mental fortitude – an entirely voluntary, week-long bike ride through the mountains along the Blue Ridge Parkway to raise money for hemophagocytic lymphohistiocytosis (HLH) research. Dr. Ashish Kumar, MD, PhD stops along the Blue Ridge Parkway during part of his 500 mile ride. This particular bike ride has taken many forms since Justin Akin rode from Amarillo Texas to Chicago Illinois in 2011. He made that first ride…