(HealthDay News) -- Healthy running largely depends on choosing the correct running shoes. And a prime consideration is the shape of your arches -- be they low/flat, "normal" or high.

(HealthDay News) -- Most people can exercise comfortably in cold weather, assuming they bundle up. The prime concern is preventing hypothermia -- the loss of too much body heat.

FRIDAY, Oct. 12 (HealthDay News) -- Only half of U.S. adults who thought they or their children might have a concussion sought medical treatment, a finding that suggests many people do not understand the seriousness of a potential concussion, a new survey finds.

FRIDAY, Oct. 12 (HealthDay News) -- Drinking coffee instead of water may restore normal bowel function more quickly among people who have had surgery to remove part of their colon, a new study suggests.

FRIDAY, Oct. 12 (HealthDay News) -- Standards used to diagnose concussion in college athletes are inconsistent and require clearer definitions and better tools to make the diagnosis, researchers report.

FRIDAY, Oct. 12 (HealthDay News) -- Autism researchers have been given the go-ahead by the U.S. Food and Drug Administration to launch a small study in children with autism that evaluates whether a child's own umbilical cord blood may be an effective treatment.

FRIDAY, Oct. 12 (HealthDay News) -- For students with a good memory, feeling anxious before taking an exam might actually lead to a higher test score, researchers have found.

THURSDAY, Oct. 11 (HealthDay News) -- The company at the center of the ongoing meningitis outbreak appears to have violated Massachusetts law by producing and distributing large quantities of a contaminated steroid compound, a state health official said Thursday.

Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:

FRIDAY, Oct. 12 (HealthDay News) -- The open enrollment period for seniors choosing their 2013 Medicare plan starts Monday, and U.S. health officials say there are more high-quality health plans to choose from this time around.