Newborn baby rats lie in a basket
Mother’s Circadian Rhythms Mirrored in Fetal Rat Brains
Before their own central clocks develop, the brains of fetal rats detect their mother’s metabolic cycle to help regulate the expression of certain genes.
Mother’s Circadian Rhythms Mirrored in Fetal Rat Brains
Mother’s Circadian Rhythms Mirrored in Fetal Rat Brains

Before their own central clocks develop, the brains of fetal rats detect their mother’s metabolic cycle to help regulate the expression of certain genes.

Before their own central clocks develop, the brains of fetal rats detect their mother’s metabolic cycle to help regulate the expression of certain genes.

hypothalamus
An illustration showing a scale weighing two double-stranded pieces of DNA that has a big question mark in the center.
Mouse Foraging Behavior Shaped by Opposite-Sex Parent’s Genes
Dan Robitzski | Apr 12, 2022
A study in mice finds that for certain genes, one parent’s allele can dominate expression and shape behavior—and which parent’s allele does so varies throughout the body.
Discovered: Brain Cells that Control Hibernation-Like States
Ruth Williams | Jun 11, 2020
Two independent teams identify neuron populations in the mouse brain that regulate the physiological changes associated with torpor.
a mouse on an exercise wheel
Early Epigenetic Changes Regulate Voluntary Exercise in Mice: Study
Emma Yasinski | Dec 7, 2019
Altering DNA methylation in a particular area of the hypothalamus halved the animals’ voluntary exercise as adults.
Exercise Warms the Brain, Causing Mice to Eat Less
Kerry Grens | Apr 24, 2018
Directly activating a heat sensor also sensitive to capsaicin in chili peppers in the hypothalamus had the same effect as exercise.
Infographic: Searching for the Neural Basis of Gender
Shawna Williams | Feb 28, 2018
Brain studies have yielded a mixed picture of the neural similarities and differences between people of different genders.
Stem Cells in the Hypothalamus Slow Aging in Mice
Ashley P. Taylor | Jul 26, 2017
Once implanted into animals’ brains, neural stem cells that secrete microRNA-containing vesicles seem to contribute to an anti-aging effect.
Image of the Day: Pretty Prohormone
The Scientist Staff | Jun 8, 2017
Once it’s cleaved, the protein precursor pro-opiomelanocortin (POMC) gives rise to hormones involved in appetite, arousal, pleasure, and more.
Binge-Eating Neurons Identified
Jef Akst | May 26, 2017
Inducing activity in the zona incerta region of the brain prompts mice to gorge themselves.
Another Obesity Drug Trial Death
Kerry Grens | Dec 2, 2015
A second patient taking an experimental medication to treat Prader-Willi Syndrome has died of blood clots.
Sperm RNAs Transmit Stress
Kate Yandell | Oct 19, 2015
Stressed male mice can pass on an abnormal stress response to their offspring via microRNAs found in sperm, a study shows.
Neuroscience of Marijuana Munchies
Ruth Williams | Feb 18, 2015
Cannabinoids cause appetite-suppressing neurons to produce an appetite-stimulating hormone in mice.
Brain’s Role in Browning White Fat
Anna Azvolinsky | Jan 15, 2015
Insulin and leptin act on specialized neurons in the mouse hypothalamus to promote conversion of white to beige fat.
Brain Circuit Toggles Eating
Kerry Grens | Sep 26, 2013
A network of neurons in the hypothalamus can turn feeding behavior on or off with the flip of an optogenetic switch in mice.  
Light on the Brain
Sabrina Richards | Sep 20, 2012
Researchers find that photoreceptors expressed in zebrafish hypothalamus contribute to light-dependent behavior.
Sex, Deconstructed
Megan Scudellari | Feb 2, 2012
Hormones in the brain control sex-specific behaviors by activating individual genetic programs.