David Lombrozo was never a good sleeper. "Then I started my own company, and it got worse," said the Marietta, Ga., owner of an information-technology management company. "I got to bed later, got up earlier, wasn't eating well. I gained 15 pounds, which made me snore and woke me up even more."
As a result, Type 2 diabetes, which had been lurking in his family genes, caught up with him. Now Lombrozo must give himself a daily insulin injection and test his blood-sugar levels several times a day to keep the disease in check.