CLIMATE CHANGE AND SLEEP
A new study shows that climate change is making it harder to fall asleep. The study, published in Cell Press over the weekend, shows that millions of people are already sleeping less because of higher overnight temperatures. The study looked at people in 68 countries and found that when nights were hotter than 86 degrees, people slept 14 minutes less. That averages out to over 44 hours per year. Here in the U.S., at least 30 percent of adults in most areas reported sleeping less than 7 hours per night, with as many as 43 percent in areas of the south and west. The elderly and people in low-income countries were the most impacted, with the study citing a lack of air conditioning as an issue.
MOSQUITO STUDY
Finally, a couple weeks ago we told you about the study showing that your coconut body wash might stop mosquitoes from biting you. Well now, there's new research showing that your body odor is also a major factor. The study, published in Current Biology, showed that carboxylic acids, a compound that's produced by bacteria on your skin, was the most attractive to mosquitoes. On the flipside, one subject who had higher levels of eucalyptol, a chemical found in the eucalyptus tree, repelled the mosquitoes the most. Unfortunately, these scents can be so subtle that showering or wearing stronger deodorant probably won't be enough to trick the flying pests, but this research could help develop better repellants or traps for mosquitoes in the future.
The World Health Organization's cancer agency has deemed the sweetener aspartame — found in diet soda and countless other foods — as a “possible” cause of cancer, while a separate expert group looking at the same evidence said it still considers the sugar substitute safe in limited quantities.
More than a third of Americans were under extreme heat advisories, watches and warnings Thursday as a blistering heat wave that's been baking the nation spread further into California, forcing residents to seek out air conditioning or find other ways to stay cool in triple-digit temperatures.
Tourists in central Athens huddled under mist machines, and zoo animals in Madrid were fed fruit popsicles and chunks of frozen food, as southern Europeans braced for a heat wave Thursday, with a warning of severe conditions coming from the European Union’s space agency.
A new study published in Nature has found that more than 56 percent of the world's oceans have changed color in the past 20 years, and climate change is to blame.
Recently discovered teeth of a two-million-year-old human relative in Africa could give researchers new insight into genetics.
U.S. officials have approved the first over-the-counter birth control pill, which will let American women and girls buy contraceptive medication from the same aisle as aspirin and eyedrops.
The Webb Space Telescope is marking one year of cosmic photographs with one of its best yet: the dramatic close-up of dozens of stars at the moment of birth.
