Smartphone fitness apps and wearable activity trackers do help boost physical activity levels, finds a review and pooled data analysis of the available evidence, published online […]
The World Health Organization on Thursday granted emergency validation to the Pfizer-BioNTech vaccine, paving the way for countries worldwide to quickly approve its import and distribution.
“A mother,” “a cancer patient,” “someone who loved the rain”: Los Angeles health officials tweeted every 10 minutes Thursday to mark the deaths of a coronavirus […]