This Video Is the Best Explanation Yet of How Genomes Really Work

There are 20,000 genes in the human genome, but only a small fraction of them are active in any given cell. This video from Nature explains with beautiful clarity the system that activity, turning genes on and off. It's called the epigenome, and it's incredibly important. Now you can understand how it works, too. » 2/19/15 4:00pm 2/19/15 4:00pm

Tough Times Are Written in Your DNA; Good Thing You Can Erase Them

You've seen the reports that individuals with a lower economic and social status suffer from poor health more often than folks in higher tax brackets. Now, thanks to a multi-year study of rhesus macaques monkeys, researchers have found genetic changes caused by stressful environments are likely contributing to that… » 4/09/12 3:01pm 4/09/12 3:01pm

You Might Be Infertile Because Your Grandparents Were Mucking Around in Harmful Chemicals

New research shows that if your grandmother or even your great-grandmother came in contact with some very common environmental chemicals, you could be suffering the consequences today in the form of male infertility, ovarian disease and the early or late onset of puberty. » 2/28/12 6:15pm 2/28/12 6:15pm