The onset of winter in the Delhi-NCR region brings an alarming annual spike in toxic air pollution, turning hazardous or severe air quality index levels into a recurring crisis. Whenever discussions around pollution arise, the immediate mental image involves coughing citizens, chest tightness, and asthma patients gasping for breath. The conventional public perception is that polluted air primarily targets the human lungs and respiratory system. However, recent medical studies and expert insights reveal that this hazardous smog is not just harming respiratory organs but is also steadily eroding brain health. Dr. Raghav Kapoor, a neurology consultant at Fortis Okhla, sheds light on the mechanisms through which toxic air impacts the human brain.
How Air Pollution Harms the Brain
The detrimental impact of air pollution extends across multiple bodily organs, including the brain. Microscopic pollutants such as PM2.5 enter the human body via inhalation, triggering internal inflammation, oxidative stress, and altering the normal functioning of blood vessels. Research indicates that prolonged exposure to polluted air significantly elevates the risk of experiencing a stroke. It also plays a key role in raising blood pressure and damaging vascular pathways. A stroke occurs when blood supply to a specific region of the brain is interrupted or when bleeding occurs inside the brain. Consequently, affected individuals may suddenly exhibit symptoms such as weakness or numbness on one side of the body, difficulty speaking or comprehending language, drooping on one side of the face, sudden vision impairment, or a total loss of bodily balance.
Essential Precautions to Follow
While completely escaping toxic air in metropolitan areas like Delhi remains a major challenge, adopting certain precautionary measures can help mitigate health risks. When pollution levels soar significantly, outdoor physical activities should be minimized, air quality index readings must be monitored closely, and well-fitted N95 masks should be utilized whenever necessary. Additionally, keeping blood pressure, diabetes, and cholesterol levels under strict control remains vital. Abstaining completely from smoking and maintaining a routine of regular physical exercise further help in safeguarding overall neurological and physical well-being against the ongoing pollution crisis.
