(Thinkstock/Stockbyte) Warming seas from climate change could spread ciguatera fish poisoning,a potentially sexually transmitted form of food poisoning, according to NPR. The report looks at a 25-year-old study that suggested ciguatera could have been sexually transmitted from a husband to his wife in two separate cases. The poison could have been passed along to the wives through semen, according to the study from the journal Clinical Toxicology. That study appears even more relevant today, because cases of ciguatera have been...

((Thinkstock/Chris Amaral)) It's high time for the winter blues — and the more serious seasonal affective disorder, which affects some 500,000 Americans. But that number could largely underestimate how common the condition is in the U.S. — because it doesn’t include any of the non-humans living with the disorder. Yes, even pets can experience their own form of seasonal sadness, according to veterinarians. (MORE: 19 Signs You're Depressed and Don't Know It) In 2009, nearly eight million pets living in...

With a well-being score of 70.4, North Dakota snagged the title of the nation’s best well-being state, according to the 2013 Gallup-Healthways Well-Being survey. Click through to countdown from the happiest state to the saddest — and to find out where your state ranks. (Ron Chapple/Thinkstock) For the first time ever, North Dakota, a state known for wide open spaces and a cooler climate, is at the top of the Gallup-Healthways Well-Being Index, knocking Hawaii out of the top two...