A new study links coffee consumption to lower risk of all-cause mortality, but found benefits diminished with additives like milk or sugar.

"...it's not just whether you drink coffee or how much you drink, but the time of day when you drink coffee that's important."

"...these findings support the need for more data and further studies around the impact that coffee and tea can have on reducing cancer risk."

Even unstimulating coffee has stimulating chemistry.

Researchers have created what they say is the highest-quality reference genome to date of the world's most popular coffee species, Arabica.

With new insight into the genetic complexity of coffee crops, new, more climate-resilient varieties could be bred in the future.