Same-sex behavior seen in nearly all animals, review finds ... weather, temperature, or geographic features, but we can think of the social circumstances in a population of animals as a selective force ... said. Same-sex behavior radically changes those social circumstances, for example, by removing some individuals from the pool ...
Your MNT account status. Electronic Cigarettes Can Harm The Lungs, Says Study. Electronic cigarettes, seen by many as a healthy alternative to tobacco smoking, can be harmful to the lungs, scientists from the University of Athens, Greece, explained at the European Respiratory Society's Annual Congress 2012, Vienna, on Sunday 9 June 2012.
Carbon monoxide in cigarettes. Cigarette smoke contains carbon monoxide. When inhaled, carbon monoxide in cigarettes reduces the ability of red blood cells to carry oxygen to tissues in the body and brain. As carbon monoxide levels in the blood increase, oxygen levels in the blood decrease.his is potentially dangerous and can be the cause of heart failure. Nicotine in cigarettes causes a short-term increase in blood pressure, heart rate, and blood flow. Nicotine can also cause arteries to constrict. The carbon monoxide in cigarettes lowers the amount of oxygen the blood is able to carry.