David Adam is a freelance science journalist and a bestselling author based in the UK. He has a PhD in chemical engineering from the University of Leeds. See more about his work at www.davidneiladam.com
An independent lab fails to replicate results suggesting mammals exposed to pathogens could pass on immunological protections through epigenetic mechanisms.
Prolonged exposure to morphine triggers cells in the spine to release signaling molecules that increase pain sensitivity and dull the relief of the drug. Blocking this activity could improve pain management.
Social distancing measures prevented millions of COVID-19–related deaths around the world, according to a handful of studies, but it’s hard to quantify the effects with certainty.
It can take days for each death to be recorded in official statistics. “Nowcasting” estimates the actual occurrence of deaths, and the true peak of the pandemic.