nature – February 23, 2023 issue:

Exercise triggers fat breakdown at some times of day and not others

Adipose tissue in mice dumps fat during early workouts rather than late ones.

Cities worldwide claw vast amounts of land from the sea

China, the United Arab Emirates and other countries are adding area by converting wetlands and shallow waters into solid land.

Genome editor tackles disease that can cause sudden death

Scientists repair a mutation that causes heart-muscle abnormalities and can kill without warning.