FDA Warns Companies on Dangerous, Unapproved Stem Cell Treatments

FRIDAY, Dec. 21, 2018 -- After infections tied to unapproved stem cell treatments sent 12 people to hospital this past year, the U.S. Food and Drug Administration on Thursday issued a stern warning about the products.

"The letters we're issuing today to manufacturers, health care providers and clinics around the country are a reminder that there's a clear line between appropriate development of these products and practices that sidestep important regulatory controls needed to protect patients," FDA Commissioner Dr. Scott Gottlieb said in a statement.

Brisk Walks May Help, Not Harm, Arthritic Knees

TUESDAY, Oct. 23, 2018 -- If you suffer from knee arthritis and worry that walking will only worsen your damaged joint, a new study suggests you put your fears aside, slip on some sneakers, and take a brief but brisk walk.

The researchers estimated that if older adults with the condition added just 5 minutes of brisk walking to their day, their odds of needing knee replacement surgery could dip by 16 percent.