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The US is on track to lose its measles elimination status in months. RFK needs to go.
By Elizabeth Jacobs, James Alwine published
Opinion Canada has lost its measles elimination status and the U.S. is likely to be next. These failures are the result of the anti-vaccination movement, bolstered by the appointment of Robert F. Kennedy Jr. — and it's a bellwether of the erosion of public health.

Honeywell Designer Series HPA830 air purifier review: The power of simplicity
By Anna Gora published
Reviews This air purifier's air-cleaning performance gets top marks, but we think it lacks modern looks and fancy features.

Woman had her twin brother's XY chromosomes — but only in her blood
By Mindy Weisberger published
Doctors discovered a woman had "blood chimerism" after examining the chromosomes of cells from different parts of her body.

What causes the feeling of 'butterflies' in your stomach?
By Marilyn Perkins, Anna Gora last updated
Flutters, knots and other stomach sensations tied to nervousness are all examples of the gut-brain axis in action.

CTE may stem from rampant inflammation and DNA damage
By Larissa G. Capella published
New research shows that CTE may stem from DNA damage and inflammation set in motion by blows to the head.

High-fiber diet may 'rejuvenate' immune cells that fight cancer, study finds
By RJ Mackenzie published
A laboratory study reveals an interaction between dietary fiber and the gut microbiome that may be helpful for fighting cancer.

Best running shoes for supination 2025: Find the perfect fit for your feet
By Harry Bullmore last updated
Buyers guide These are the best running shoes you can buy in every category, from New Balance 1080 v14 and Brooks Glycerin 20 to Hoka Mach X.

Science history: 'Patient zero' catches SARS, the older cousin of COVID — Nov. 16, 2002
By Tia Ghose published
A person came down with an atypical form of pneumonia in November 2002, but it would be two months before anyone realized it was the start of a pandemic.
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