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Best fitness trackers 2024: Measure steps, sleep, calories and more
By Andrew Williams, Anna Gora last updated
Buying Guide These are the best fitness trackers you can buy in every category, from Apple Watch Series 8 and Garmin Fenix 7 to Amazfit Balance.
Best budget fitness tracker 2024: Hit your fitness goals without breaking the bank
By Maddy Biddulph last updated
These are the best budget fitness trackers you can buy in every category, from Fitbit Inspire 3 and Garmin Vivosmart 5 to Amazfit Bip 3 Pro.
How to avoid bird flu
By Stephanie Pappas published
The vast majority of human cases of H5N1 bird flu in the U.S. have resulted from direct contact with animals, so a few simple precautions can keep most people's risk very low.
Your skin color may affect how well a medication works for you — but the research is way behind
By Emily Cooke published
As a new analysis highlights the impact of skin tone on drug safety and efficacy, experts outline what can be done to make medical research more inclusive.
'Exercise juice' released by muscles helps nerves grow, study finds
By Clarissa Brincat published
A new study in mouse cells hints that substances released by muscles can help nearby nerves grow.
New CRISPR system pauses genes, rather than turning them off permanently
By Jennifer Zieba published
Researchers in Lithuania present the molecular structure of a new, more-versatile CRISPR system for gene editing.
Bird flu strikes 1st child in the US — CDC says infection source unknown
By Pandora Dewan published
A child in California caught bird flu amid a recall of raw milk in the state, but investigations have found no evidence that the case was caused by raw milk.
Best air purifiers for allergies 2024
By Molly Cleary, Anna Gora last updated
BUYING GUIDE These are the best air purifiers for allergies you can buy in every category, from Levoit Core 600S and GermGuardian AC4825E to RabbitAir A3.
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