People with a certain genetic heart condition may react poorly to energy drinks, Live Science reports.

In small randomized, double-blind study, University of Sydney researchers gave patients with familial long QT syndrome either caffeinated energy drinks or control drinks. Familial long QT syndrome can led to a rapid, irregular heartbeat and sudden death, and affects about one in 2,000 people.

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Two researchers have found that behavioral genetic defenses in criminal cases don't tend to affect outcomes, according to Popular Science.

Researchers report that while host genetics influence the oral microbiome, they don't appear to affect cavity-causing microbes, the Economist says.

Pandas' gut microbiomes change as what they eat changes with the seasons, writes Discover's Inkfish blog.

In PLOS this week: comparative genomic study of malaria-linked macaque parasite, search for apple root reference genes, and more.