A study led by UCSF doctor Dean Ornish found that lifestyle changes -- instead of invasive treatment -- can reverse cancer. In 30 men with early-stage prostate cancer who chose to enroll in his program, which included a "low-fat, whole-food, plant-based diet, stress management, moderate exercise and plenty of 'psychosocial group support,'" Ornish found that the expression levels of more than 500 genes were changed.

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Technology Review reports that researchers in the US have used CRISPR to modify a number of human embryos.

By introducing genes from butterfly peas and Canterbury bells, researchers in Japan have developed a blue chrysanthemum, according to NPR.

Plant researchers plan to sequence some 10,000 samples that represent the major plant clades, ScienceInsider reports.

In Nature this week: a Danish reference genome, and more.