What's the best fitness tracker of 2026? I've tested more than I can count, these are my top picks

After testing countless devices for accuracy, comfort, and general value, these are the best fitness trackers I'd recommend.
Nature

Neuronal calcium sensor proteins: generating diversity in neuronal Ca

Many aspects of neuronal function are regulated by changes in the concentration of intracellular free Ca 2+. To fully understand how this occurs, an appreciation is needed of how changes in the ...