On the Web

These Web-only Health offerings can be found at latimes.com/health:

ASK US

Our reporters answer readers’ health questions. Today’s query: When engaging in the most strenuous portion of my cardio workout, my heart rate routinely gets up to around 95% of the maximum heart rate calculated for my age. I am going by the standard formula or chart that’s on the cardio machine. I don’t feel winded and can sustain that rate for some time. Should I be concerned?

BY THE NUMBERS

A statistical look at medical news. This week: Americans rate their healthcare on a zero-to-10 scale in which zero is the worst possible care and 10 the best.

EDITOR’S PICKS

Top health and medical news from around the Web -- posted daily.