Bengaluru, Jan 4 : The winter chill could be perfect for sweet ginger tea, steaming kababs & terrace top parties. But there is one thing it isn't good for-your blood pressure. "Dipping temperatures during winter in the last couple of years in the country have led to a three fold increase in stroke, especially the haemorrhagic type.
Visiting Professor of Neuroscience at the Bengaluru-based Rajiv Gandhi University of Health Sciences , Dr Naresh Purohit delivered an oration at a National Continuing Medical Education Programme at NIMHANS, Bengaluru. Dr Purohit said after the oration that whenever there is an exposure to extreme cold, like the weather in most parts of northern,western and central India right now, there is a tendency for us to lose body temperature through the skin.
"Because there is a huge difference in temperature of your body-37 degree & outside temperature around eight degrees, in order to conserve heat, our body constricts the vessels near the skin. This raises our blood pressure.
This constriction leads to a lot of people developing leaking blood vessels in the brain. This causes brain hemorrhage like stroke or brain attack. Blood pressure in such weather should be less than 140 by 90. "In diabetics who have more fragile vessels, it should be 120 by 80. If blood pressure goes above 180 by 110, it is alarming & the patient should immediately see a doctor," Association of studies for neurological care - Executive Member Dr Purohit averred. "It is not just people with a history of hypertension who are at risk during such weather. Even normal people, including youngsters should monitor their blood pressure.
Chances of survival after a brain hemorrhagic stroke is 50 percent. It is therefore always advisable not to expose ourselves suddenly from hot weather to very cold temperature," Dr Purohit added. "Blood vessels degenerates as you age.Arteries weakened because of chronic blood pressure, burst because they have thin walls, when suddenly faced with cold temperature. Avoid taking long walks in cold weather," he added.
Australian Stroke Association recently offered tips on how to brace plummeting temperatures,"Close curtains and shut doors to keep heat in the rooms used the most. Ideal room temperature is 18-21 degree centigrade. Get your blood pressure checked & visit your doctor if your reading is high. Eat well. Food is a vital source of warmth, so you should eat regular hot meals, which are low in saturated fat & salt & drink hot drinks throughout the day. Keep moving if possible-it can lower your BP." (UNI)