In the interesting video below, Derek Muller from the YouTube Channel Veritasium explains some basics regarding the measuring of radioactivity, and then he visits some of the most radioactive places on Earth with his Geiger counter in tow. At the end of the video, Derek talks about the amount of radiation he would have received if he had stayed in the most radioactive place he visited for one hour and reveals that it pales in comparison to the amount of radioactivity received by people living in some locations or engaging in certain activities. One of these activities, which is sadly still extremely common, exposes a part of the body to the greatest amount of radiation regularly received by human beings nowadays. Watch the video to find out what activity is this!
Nowadays if someone questions that smoking is bad for your health they would be met with looks of befuddlement or derision. The cigarette is one of the deadliest products ever to be marketed, causing the death of millions throughout the world and killing nearly half a million people in the United States each year. But we have to remember that the acknowledgement of this fact by our society was the result of a hard fought battle by scientists, health advocates, clinicians, government officials and many others against a massive denialism campaign waged by tobacco companies. So today, as a reminder, I am posting 2 videos.
The first video shows what goes into you when you smoke cigarettes.
The fact that smoking doesn't kill you sooner is a testament to the defense mechanisms and the regenerative properties of our bodies. However, smoking does end up harming most of the people who indulge in this habit, and one of the main sites of its harmful effects are the lungs as shown in the video below.
Most people associate smoking with lung cancer, but smoking also increases the risk of coronary heart disease, stroke, and cancer in other locations besides the lungs. The good news however, is that if you quit smoking, your body can repair much of the damage caused by smoking, and you can live longer and be a healthier person.
Just a reminder.