Blood Pressure Readings The American Heart Association advises that a healthy blood pressure is around 120/80. High blood pressure, also known as hypertension, often has no symptoms, yet it could weaken the arteries of the circulatory system and cause damage to the heart, brain, and kidneys over a span of many years. Nearly 1 in [...]
The Dangers of Stinging Insects Fossils of wasps and bees found in earth’s northern hemisphere show that these stinging pests have been around for 200 million years or longer. They exist in every part of the world and they range in size from 2 millimeters (.08 inches) to 1.5 inches long. Though their [...]
Using Immune Cells to Fight Cancer Our immune system consists of the innate immunity we’re born with and the adaptive immunity that we acquire during our lifetime. Our immune systems function by creating antibodies that patrol the bloodstream in search of pathogens such as bacteria and viruses. Medical researchers are studying ways that [...]
Genetically Modifying Fruits and Vegetables DNA technology has enabled scientists to genetically modify crops to enhance beneficial qualities and to boost their ability to withstand pests and inclement weather. The skeptics are concerned about corporations focused more on their bottom line than on the health of consumers, but others are cautiously optimistic about [...]