Cardiovascular disease Health effects of tobacco

smoking can cause atherosclerosis leading coronary artery disease , peripheral arterial disease



tobacco stains on 2nd , 3rd fingers in heavy smoker.

inhalation of tobacco smoke causes several immediate responses within heart , blood vessels. within 1 minute heart rate begins rise, increasing as 30 percent during first 10 minutes of smoking. carbon monoxide in tobacco smoke exerts negative effects reducing blood’s ability carry oxygen.

smoking increases chance of heart disease, stroke, atherosclerosis, , peripheral vascular disease. several ingredients of tobacco lead narrowing of blood vessels, increasing likelihood of blockage, , heart attack or stroke. according study international team of researchers, people under 40 5 times more have heart attack if smoke.

recent research american biologists has shown cigarette smoke influences process of cell division in cardiac muscle , changes heart s shape.

the usage of tobacco has been linked buerger s disease (thromboangiitis obliterans) acute inflammation , thrombosis (clotting) of arteries , veins of hands , feet.

although cigarette smoking causes greater increase in risk of cancer cigar smoking, cigar smokers still have increased risk many health problems, including cancer, when compared non-smokers. second-hand smoke, nih study points large amount of smoke generated 1 cigar, saying cigars can contribute substantial amounts of tobacco smoke indoor environment; and, when large numbers of cigar smokers congregate in cigar smoking event, amount of ets [i.e. second-hand smoke] produced sufficient health concern regularly required work in environments.

smoking tends increase blood cholesterol levels. furthermore, ratio of high-density lipoprotein (the cholesterol) low-density lipoprotein (the bad cholesterol) tends lower in smokers compared non-smokers. smoking raises levels of fibrinogen , increases platelet production (both involved in blood clotting) makes blood viscous. carbon monoxide binds haemoglobin (the oxygen-carrying component in red blood cells), resulting in stabler complex haemoglobin bound oxygen or carbon dioxide—the result permanent loss of blood cell functionality. blood cells naturally recycled after period of time, allowing creation of new, functional erythrocytes. however, if carbon monoxide exposure reaches point before can recycled, hypoxia (and later death) occurs. these factors make smokers more @ risk of developing various forms of arteriosclerosis. arteriosclerosis progresses, blood flows less through rigid , narrowed blood vessels, making blood more form thrombosis (clot). sudden blockage of blood vessel may lead infarction (stroke). however, worth noting effects of smoking on heart may more subtle. these conditions may develop gradually given smoking-healing cycle (the human body heals between periods of smoking), , therefore smoker may develop less significant disorders such worsening or maintenance of unpleasant dermatological conditions, e.g. eczema, due reduced blood supply. smoking increases blood pressure , weakens blood vessels.