![Fear memories can be overcome during sleep, researchers say Fear memories can be overcome during sleep, researchers say](https://resizer-awani.eco.astro.com.my/tr:w-177,h-100,q-100,f-auto/http://img.astroawani.com/2013-09/61379950373_295x200.jpg)
Fear memories can be overcome during sleep, researchers say
Scientists at Northwestern University say they have successfully lowered levels of fear in humans by using certain odors to trigger and re-associate frightening memories.
Tue Sep 24 2013
![Lack of sleep leads to groggy genes Lack of sleep leads to groggy genes](https://resizer-awani.eco.astro.com.my/tr:w-177,h-100,q-100,f-auto/http://img.astroawani.com/2013-02/81362023682_295x200.jpg)
Lack of sleep leads to groggy genes
Lack of sleep has a potentially harmful effect on gene expression, according to a study out Tuesday that sheds light on the link between sleep deficits and a wide range of health conditions.
Thu Feb 28 2013