This cause our blood sugar levels to become chronically high and increase the risk for obesity and a lot of other nasty diseases. (directlyfitness.com)
While no one wants to deal with a flea infestation, it's also worth remembering that fleas and ticks carry nasty diseases. (bracpet.com)
In a modern outbreak of plague, antibiotics and other medical advances help us fare better, but it remains a particularly nasty disease. (discovermagazine.com)