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Xiaomi Watch 2 review
By Kat Bayly published
Review A budget smartwatch with a lightweight and stylish design that's let down by clumsy navigation and poor battery life.

This might be the best exercise bike deal ever: NordicTrack exercise bike 41% off in the Amazon Big Spring Sale — a massive $610 saving
By Paul Brett published
Deal NordicTrack is renowned for producing some of the best exercise equipment around, and its Commercial S22i Studio Cycle indoor cycling bike is no different. It has a load of fitness and health-improving features.

New cells discovered in eye could help restore vision, scientists say
By Emily Cooke published
A new study suggests that never-seen-before stem cells in the human retina can restore vision in mice with a common eye disorder. But more work is needed to translate the treatment to people.

'We will fight for him': Author John Green meets Henry Reider, a young tuberculosis patient with drug-resistant disease
By John Green published
"At the time, I knew almost nothing about TB. To me, it was a disease of history — something that killed depressive 19th-century poets, not present-tense humans."

'Fish odor syndrome': A rare metabolic condition that makes sweat smell like rotten fish
By Emily Cooke published
Patients with trimethylaminuria, or "fish odor syndrome," make too much of a chemical with a strong fishy smell.

HIV-funding cuts could lead to nearly 3 million extra deaths by 2030, study suggests
By Nicoletta Lanese, Emily Cooke published
A modeling study looked at how anticipated cuts to international HIV funding would affect the rate of new cases and HIV-related deaths in low- and middle-income countries.

Brain aging accelerates dramatically around age 44 — could ketone supplements help?
By Kamal Nahas published
A study of thousands of people finds that neural connections in the brain start to break down quickly around age 44, but the research hints that ketone supplements could potentially help slow that brain aging.

Brain quiz: Test your knowledge of the most complex organ in the body
By Nicoletta Lanese published
What do you know about the wrinkly organ inside your skull?
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