Weekday–Weekend Sleep Imbalance Bad for Blood Sugar Regulation
Weekday sleep deprivation with weekend make-up sleeping seems to be worse for blood sugar control than even chronic sleep deprivation alone.
Stories by Karen Hopkin
Grandma's Influence Is Good for Grandkids
Grandmothers can enhance the survival of grandchildren. That is, unless grandma’s too old or lives too far away. Karen Hopkin reports.
Human Diet Drugs Kill Mosquitoes' Appetite, Too
When researchers fed mosquitoes a drug used to treat people for obesity, the insects were less interested in hunting for their next human meal ticket. Karen Hopkin reports.
Elephant Weight Cycles with New Teeth
Elephants have six sets of teeth over their lives, sometimes two sets at once. At those times, they can extract more nutrition from food and put on weight.
Rocking Helps Adults Sleep Too
Adult humans, as well as mice, slept better when gently rocked.
Targeting Certain Brain Cells Can Switch Off Pain
By turning off certain brain cells, researchers were able to make mice sense painful stimuli—but not the associated discomfort. Karen Hopkin reports.
Intimate Hermit Crab Keeps Shell On
A species of hermit crab appears to have evolved a large penis to enable intercourse without leaving, and thus possibly losing, its adopted shell.
Monogamy May Be Written in Our Genes
In animal studies, a set of 24 genes involved in neural development, learning and memory, and cognition, seem to be associated with monogamy. Karen Hopkin reports.
Simple Sugars Wipe Out Beneficial Gut Bugs
Fructose and sucrose can make it all the way to the colon, where they spell a sugary death sentence for beneficial bacteria. Karen Hopkin reports.
"Hunger Hormone" Ghrelin Aids Overindulgence
Ghrelin, the hormone that makes you hungry, also makes food, and food smells, irresistibly appealing. Karen Hopkin reports.
Measuring the Strength of a Person's Gaze
A new study suggests that, unconsciously, we actually do believe that looking exerts a slight force on the things being looked at. Karen Hopkin reports.
Bone Building Needs Bit of Breakdown First
The hormone irisin encourages bone remodeling, in part by first triggering another substance that encourages some bone breakdown.
You Gotta Scratch That Itch
A particular set of brain neurons may be behind registering itch and inducing us to scratch.
Survey the Wildlife of the "Great Indoors"
Biologists are enlisting citizen scientists to poke around under the sink and behind the curtains, for wildlife living in the "great indoors." Karen Hopkin reports.
Pasta Problem Cracked!
An intrepid undergrad led the way to understanding the physics of snapping strands of spaghetti.
Solar Eclipse of 2017 Boosted Science Interest
The Michigan Scientific Literacy Survey of 2017 found that last year's total solar eclipse got Americans more interested in celestial science.
Iridescence Could Help Critters Hide in Plain Sight
Iridescence appears to break up the recognizable shape of objects—making them harder to spot. Karen Hopkin reports.
Fat–Carb Combo Is a Potent One–Two Punch
Foods high in both carbs and fats tickle the brain’s reward circuits more so than snacks that showcase just one or the other. Karen Hopkin reports. ...
A Litmus Test for Bad Breath
Researchers engineered a portable device that detects even the tiniest trace of hydrogen sulfide—one of the primary offenders in bad breath. Karen Hopkin reports.
Saying "This May Hurt" May Make It Worse
Warning a child that something, like a vaccine shot, will hurt can actually increase their perception of the pain.
