A new survey of U.S. adults finds just 44% know the five main symptoms of a stroke, and only 38% would call 911 if they though someone was having a stroke.

Because timely treatment is crucial to a stroke patient’s survival and recovery, experts say knowing the signs of a stroke could save someone’s life.

Along with sudden dizziness or loss of coordination and sudden confusion or trouble speaking, those signs are: sudden trouble with vision, numbness or weakness in the face, arms or legs, and a sudden severe headache.

In other medical news…

Physical activity like walking, biking and even water workouts can help ease arthritis symptoms.

But more often arthritis patients are dealing with another chronic condition: diabetes.

A new Centers for Disease Control study finds more than half of adults with diabetes are also diagnosed with arthritis.

The painful condition can be a barrier to getting beneficial exercise.

In fact, the study also finds 30% of patients with both diabetes and arthritis are sedentary, compared with 11% of adults who have neither condition.