Health

Africa begins countdown to being polio free as Nigeria marks 3 years without disease

A federal program says you should keep your home above 78 degrees

CBP will not vaccinate migrants against flu

More women should be assessed for BRCA mutations, new recommendations say

E-cigarettes change blood vessels after just one use, study says

'Red flag' laws can play a role in preventing mass shootings, study says

Prescription omega-3s can help some heart patients

New study raises questions about how fluoride affects children's development

Having kids makes you happier -- once they've moved out

UK steps up fight after losing 'measles-free' status