Dementia, a major global health concern affecting over 55 million people, is commonly linked to memory loss and confusion. However, new insights suggest that the earliest signs may show up not in the brain, but in the legs.
Dr. Arun L. Naik, a Bengaluru-based neurosurgeon, highlights that subtle changes in walking — such as slower pace, leg weakness, or coordination issues — can signal cognitive decline years before memory problems begin. Walking uses multiple brain regions, and when mobility decreases, it can reduce blood flow to the brain, limit neural stimulation, and accelerate brain shrinkage.
Warning signs include:
a) Slower walking speed
b) Difficulty climbing stairs or rising from a chair
c) Shuffling or unsteady gait
d) Trouble walking while talking or thinking
These signs aren’t a diagnosis, but they are red flags worth monitoring. Weak leg muscles and reduced mobility can lead to poor brain circulation and lower levels of brain-supporting chemicals like BDNF, which help keep neurons healthy.
Experts recommend regular walking, leg-strength exercises, and balance training to maintain both physical and cognitive health. If mobility declines without a clear cause, it’s important to consult a doctor — your legs might be giving the first clues about your brain.
