Geriatrician says her healthiest patients in their 70s and older all avoid this 1 thing. This item is based on reporting by NBC 5 Dallas-Fort Worth (KXAS) - Top Stories, published August 17, 2026. We have not reproduced that reporting here — follow the source link above for the full story. Frisco, TX coverage on this site summarises and credits the outlets that do the original reporting.