"I was also troubled with palpitations and pain about the heart, and like many a young ignorant man, especially one with a smattering of medical knowledge, was convinced that I had heart disease" Charles Darwin, Autobiography
Wait a minute! I thought Darwin's heart issues arose after the Voyage. I even suggested that it might be linked to Chagas! But here he is explaining why he my be asked not to go before they set sail. So Chagas had nothing to do with it and I was under that impression for decades. Geesh.
Set the alarm for 4:07 AM... will be here all too soon.