People over the age of the 60 without heart disease should not take low-dose aspirin daily to prevent a first stroke or heart attack, according to an independent panel of U.S. health experts. In a draft of new guidelines released online Tuesday, the U.S. Preventive Services Task Force said bleeding risks caused by aspirin outweigh any potential benefits for adults in their 60s who have not had a heart attack or stroke. Low-dose aspirin has long been recommended for people with high blood pressure, high cholesterol, obesity or other maladies …

Brain computer interfaces, where computers analyze brain signals and help paralyzed people to write and carry out other actions, is a burgeoning area of research. VOA’s Deana Mitchell has the story of one breakthrough. …

A group of World Health Organization experts is calling for 70 percent of the global population to be fully vaccinated by mid-2022 to prevent the COVID-19 pandemic from progressing in more dangerous ways. The 15-member Strategic Advisory Group of Experts, known as SAGE, which makes recommendations to WHO on vaccine policy and strategy, just concluded a four-day meeting. The experts say more than enough vaccines are available to cover everyone by the middle of next year if the doses are not hoarded by wealthy countries and are shared equitably with …

Severe storms brought suspected tornadoes and baseball-sized hail to parts of Oklahoma, but there were no reports Monday of deaths or injuries.  The severe weather system that hit Oklahoma late Sunday also brought heavy rain, lightning and wind to parts of Arkansas, Kansas, Missouri and Texas, and more stormy weather is predicted later this week in parts of the central United States.  Severe weather is not unusual in the Southern Plains in October, said Chuck Hodges, senior meteorologist with the National Weather Service in Tulsa. But Sunday’s storm “was kind …