Q&A: How much protein is enough?

Protein-maxxing—the social media-fueled trend of maximizing dietary protein at every opportunity—is showing no sign of slowing. That's in part because the federal government has weighed in with nutrition guidelines that emphasize ...

Zone 2, 3, 4? What do heart rate zones mean for your health?

Runners, cyclists and gym-goers with wearable fitness trackers are no doubt familiar with the five "heart rate" zones. Ranging from low to very high intensity, these zones are calculated as percentages of a person's maximum ...

UK parents told to limit under-5s screen time

The UK government on Friday published its first national guidance on screen time for children, advising parents to allow no more than an hour a day for under-fives.

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