The reason many women experience morning sickness, as it's often called, is likely linked to production of the hormone GDF15 in the placenta, writes Dr Martin Göpfert, senior physician in gynaecology ...
Some 70 miles away, farmer Bill Kellogg is trying to do something about the chronic algae blooms in America's southernmost Great Lake. Instead of scattering fertilizer atop his fields, Kellogg now ...